<?xml version="1.0" encoding="utf-8"?>
<export-example>
  <doc>
    <id>52079</id>
    <completedYear/>
    <publishedYear>2021</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>e10213</pageFirst>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume>9</volume>
    <type>article</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">The influence of estrogen deficiency on the structural and mechanical properties of rat cortical bone</title>
    <abstract language="eng">Background. Post-menopausal osteoporosis is a common health problem worldwide, most commonly caused by estrogen deficiency. Most of the information regarding the skeletal effects of this disease relates to trabecular bone, while cortical bone is less studied. The purpose of this study was to evaluate the influence of estrogen deficiency on the structure and mechanical properties of cortical bone.&#13;
Methods. Eight ovariectomized (OVH) and eight intact (control) Sprague Dawley rats were used. Structural features of femoral cortical bone were studied by light microscopy, scanning electron microscopy and synchrotron-based microcomputer-tomography and their mechanical properties determined by nano-indentation.&#13;
Results. Cortical bone of both study groups contains two distinct regions: organized&#13;
circumferential lamellae and disordered bone with highly mineralized cartilaginous islands. Lacunar volume was lower in the OVH group both in the lamellar and disorganized regions (182 ± 75 µm3 vs 232 ± 106 µm3 , P &lt; 0.001 and 195 ± 86 µm3 vs. 247 ± 106 µm3 , P &lt; 0.001, respectively). Lacunar density was also lower in both bone regions of the OVH group (40 ± 18 ×103 lacunae/mm3 vs. 47 ± 9×103 lacunae/mm3&#13;
in the lamellar region, P = 0.003 and 63 ± 18×103 lacunae/mm3&#13;
vs. 75 ± 13×103 lacunae/mm3 in the disorganized region, P &lt; 0.001). Vascular canal volume was lower in the disorganized region of the bone in the OVH group compared to the same Region in the control group (P &lt; 0.001). Indentation moduli were not different between the study groups in both bone regions.&#13;
Discussion. Changes to cortical bone associated with estrogen deficiency in rats require high-resolution methods for detection. Caution is required in the application of These results to humans due to major structural differences between human and rat bone.</abstract>
    <parentTitle language="eng">PeerJ</parentTitle>
    <identifier type="doi">10.7717/peerj.10213</identifier>
    <identifier type="urn">urn:nbn:de:kobv:b43-520798</identifier>
    <enrichment key="opus.source">publish</enrichment>
    <enrichment key="date_peer_review">08.02.2021</enrichment>
    <enrichment key="opus.doi.autoCreate">false</enrichment>
    <enrichment key="opus.urn.autoCreate">true</enrichment>
    <licence>Creative Commons - CC BY - Namensnennung 4.0 International</licence>
    <author>A. Shipov</author>
    <author>P. Zaslansky</author>
    <author>Heinrich Riesemeier</author>
    <author>G. Segev</author>
    <author>A. Atkins</author>
    <author>N. Kalish-Achrai</author>
    <author>S. Weiner</author>
    <author>R. Shahar</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Estrogen</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Disorganized bone</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Rat</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Lacunae</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Ovariectomy</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="institutes" number="">6 Materialchemie</collection>
    <collection role="institutes" number="">6.3 Strukturanalytik</collection>
    <collection role="themenfelder" number="">Chemie und Prozesstechnik</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei für die Öffentlichkeit verfügbar ("Open Access")</collection>
    <collection role="unnumberedseries" number="">Wissenschaftliche Artikel der BAM</collection>
    <thesisPublisher>Bundesanstalt für Materialforschung und -prüfung (BAM)</thesisPublisher>
    <file>https://opus4.kobv.de/opus4-bam/files/52079/The influence of estrogen defiency the structural and mechanical properties of rat cortical bone.pdf</file>
  </doc>
  <doc>
    <id>38641</id>
    <completedYear/>
    <publishedYear>2016</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1178</pageFirst>
    <pageLast>1186</pageLast>
    <pageNumber/>
    <edition/>
    <issue>9</issue>
    <volume>27</volume>
    <type>article</type>
    <publisherName>WILEY-BLACKWELL</publisherName>
    <publisherPlace>111 RIVER ST, HOBOKEN 07030-5774, NJ USA</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Metal elements in tissue with dental peri-implantitis: a pilot study</title>
    <abstract language="eng">Objectives:&#13;
Dental peri-implantitis is characterized by a multifactorial etiology. The role of metal elements as an etiological factor for peri-implantitis is still unclear. The aim of this study was to investigate the incidence of metal elements in bone and mucosal tissues around dental Grade 4 CP titanium implants with signs of peri-implantitis in human patients.&#13;
Methods:&#13;
In this prospective pilot study, all patients were enrolled consecutively in two study centers. Bone and soft tissue samples of patients with peri-implantitis with indication for explantation were analyzed for the incidence of different elements (Ca, P, Ti, Fe) by means of&#13;
synchrotron radiation X-ray fluorescence spectroscopy (SRXRF) and polarized light microscopy (PLM). The existence of macrophages and lymphocytes in the histologic specimens was analyzed.&#13;
Results:&#13;
Biopsies of 12 patients (seven bone samples, five mucosal samples) were included and analyzed. In nine of the 12 samples (75%), the SRXRF examination revealed the existence of titanium (Ti) and an associated occurrence with Iron (Fe). Metal particles were detected in peri-&#13;
implant soft tissue using PLM. In samples with increased titanium concentration, lymphocytes were detected, whereas M1 macrophages were predominantly seen in samples with metal particles.&#13;
Conclusion:&#13;
Titanium and Iron elements were found in soft and hard tissue biopsies retrieved from peri-implantitis sites. Further histologic and immunohistochemical studies need to clarify which specific immune reaction metal elements/particles induce in dental peri-implant tissue.</abstract>
    <parentTitle language="eng">Clinical Oral Implants Research</parentTitle>
    <identifier type="doi">10.1111/clr.12718</identifier>
    <identifier type="issn">0905-7161</identifier>
    <enrichment key="date_peer_review">13.12.2016</enrichment>
    <author>T. Fretwurst</author>
    <author>Günter Buzanich</author>
    <author>S. Nahles</author>
    <author>J. P. Woelber</author>
    <author>Heinrich Riesemeier</author>
    <author>K. Nelson</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Peri-implantitis</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Metal elements</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Synchrotron radiation X-ray fluorescence</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>32410</id>
    <completedYear/>
    <publishedYear>2014</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>F7</pageFirst>
    <pageLast>F9</pageLast>
    <pageNumber/>
    <edition/>
    <issue>2</issue>
    <volume>3</volume>
    <type>article</type>
    <publisherName>ECS</publisherName>
    <publisherPlace>Pennington, NJ, USA</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Influence of artificial aging of gas diffusion layers on the water management of PEM fuel cells</title>
    <abstract language="eng">The influence of artificial aging of gas diffusion layers (GDL) on the water management within the GDL was investigated in-operando by synchrotron X-ray radiography. One GDL was subjected to an accelerated aging procedure in 30% H2O2 solution, while another GDL was pristine. Radiographic measurements were combined with temporally resolved electrical analyzes. Significant differences in cell voltage and water accumulation were observed during cell operation at steady-state conditions. The cell which contained the aged GDL featured a higher water amount especially at the anode side and a lower cell voltage.</abstract>
    <parentTitle language="eng">ECS electrochemistry letters</parentTitle>
    <identifier type="old">35476</identifier>
    <identifier type="doi">10.1149/2.004402eel</identifier>
    <identifier type="issn">2162-8726</identifier>
    <enrichment key="date_peer_review">15.01.2015</enrichment>
    <author>Tobias Arlt</author>
    <author>M. Klages</author>
    <author>M. Messerschmidt</author>
    <author>Heinrich Riesemeier</author>
    <author>J. Scholta</author>
    <author>J. Banhart</author>
    <author>I. Manke</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Degradation</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Liquid water</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>32409</id>
    <completedYear/>
    <publishedYear>2014</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>203510-1</pageFirst>
    <pageLast>203510-8</pageLast>
    <pageNumber/>
    <edition/>
    <issue>20</issue>
    <volume>115</volume>
    <type>article</type>
    <publisherName>American Institute of Physics</publisherName>
    <publisherPlace>Melville, NY</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Change in atomic coordination in a heavily deformed metallic glass</title>
    <abstract language="eng">The local structure around Ni and La atoms in Al85Ni10La5 amorphous powder after ball milling was investigated by X-ray absorption spectroscopy. A continuous decrease in coordination number of Ni and La as a function of milling time was observed, while the nearest neighbour distance and the mean square atomic displacement did not change, pointing at the creation of free volume around the Ni and La atoms. These structural changes resemble those of a liquid upon temperature increase. The results are described by a shear band model in which the coordination numbers of Ni and La are different within and outside a shear band.</abstract>
    <parentTitle language="eng">Journal of applied physics</parentTitle>
    <identifier type="old">35475</identifier>
    <identifier type="doi">10.1063/1.4879682</identifier>
    <identifier type="issn">0021-8979</identifier>
    <identifier type="issn">1089-7550</identifier>
    <enrichment key="date_peer_review">15.01.2015</enrichment>
    <author>Y. Liu</author>
    <author>G. Schumacher</author>
    <author>Heinrich Riesemeier</author>
    <author>J. Banhart</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>X-ray-diffraction</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Shear bands</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Electron-irradiation</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Positron lifetime</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Structural model</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Amorphous-alloys</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Deformation</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Temperature</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>EXAFS</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>State</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>30034</id>
    <completedYear/>
    <publishedYear>2014</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>R16</pageFirst>
    <pageLast>R17</pageLast>
    <pageNumber/>
    <edition/>
    <issue>1</issue>
    <volume>24</volume>
    <type>article</type>
    <publisherName>Cell Press</publisherName>
    <publisherPlace>Cambridge, Mass.</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Non-sexual abdominal appendages in adult insects challenge a 300 million year old bauplan</title>
    <abstract language="eng">Despite their enormous diversity, the bauplan of adult winged insects (pterygotes) is remarkably conservative since the Lower Devonian: a five-segmented head, a three-segmented thorax with three pairs of walking legs and an eleven-segmented abdomen without any non-sexual appendages 1 and 2. The only known exceptions are the abdominal appendages of adult male sepsid flies on the fourth segment; however, these are also used as copulatory organs and are supposedly maintained through sexual selection [3]. Here, we report a rod-like paired appendage from the third and fourth abdominal segments in adults of the Southeast-Asian Hemiptera taxon Bennini (Figure 1A,B; Supplemental information). These are fully musculated, innervated, and movable and bear highly organized sensory and secretory units. The appendages, termed LASSO (lateral abdominal sensory and secretory organs), are consistent in topology and structure in all species studied and not sexually dimorphic. The existence of these non-sexual abdominal appendages reveals the potential of the 300 million year old conserved bauplan of insects.</abstract>
    <parentTitle language="eng">Current biology</parentTitle>
    <identifier type="old">32974</identifier>
    <identifier type="doi">10.1016/j.cub.2013.11.040</identifier>
    <identifier type="issn">0960-9822</identifier>
    <identifier type="issn">1879-0445</identifier>
    <enrichment key="date_peer_review">23.01.2014</enrichment>
    <author>H. Hoch</author>
    <author>A. Wessel</author>
    <author>M. Asche</author>
    <author>D. Baum</author>
    <author>F. Beckmann</author>
    <author>P. Bräunig</author>
    <author>Karsten Ehrig</author>
    <author>R. Mühlethaler</author>
    <author>Heinrich Riesemeier</author>
    <author>Andreas Staude</author>
    <author>B. Stelbrink</author>
    <author>E. Wachmann</author>
    <author>P. Weintraub</author>
    <author>B. Wipfler</author>
    <author>C. Wolff</author>
    <author>M. Zilch</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>CT</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Bauplan</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Adult insects</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Abdominal appendages</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>30546</id>
    <completedYear/>
    <publishedYear>2013</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>44</pageFirst>
    <pageLast>50</pageLast>
    <pageNumber/>
    <edition/>
    <issue>1</issue>
    <volume>28</volume>
    <type>article</type>
    <publisherName>Quintessence Publ. Co.</publisherName>
    <publisherPlace>Lombard, Ill.</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">An in vitro pilot study of the abutment stability during loading in virgin and fatigue-loaded conical dental implants using synchrotron-based radiography</title>
    <abstract language="eng">Purpose: The implant-abutment connection of a two-piece dental implant exhibits complex micromechanical behavior. A microgap is evident at the implant-abutment interface, even in the virgin state, and its width varies when an external mechanical load is applied. Materials and Methods: This study used high-resolution synchrotron-based radiography in combination with hard x-ray phase-contrast mode to visualize this gap and estimate its size. Commercially available implants with different internal conical implant-abutment connections were imaged. Pairs of implants were imaged as manufactured (new) and after fatigue loading (5 million cycles up to 120 N). Then, different static loads were applied at different angles relative to the implant-abutment assemblies, and the implant-abutment microgaps were measured and compared. Results: Microgaps existed in all systems. Fatigue loading extended the size of the microgap and increased the possibility of micromovement of the implant-abutment complex. The cone angle of the connection also influenced the stability of the abutment, with flatter cones appearing to be more stable. Conclusion: Cyclic loading at medium force (120 N) induces plastic deformation of titanium implants and abutments.</abstract>
    <parentTitle language="eng">The international journal of oral &amp; maxillofacial implants</parentTitle>
    <identifier type="old">33521</identifier>
    <identifier type="doi">10.11607/jomi.2748</identifier>
    <identifier type="issn">0882-2786</identifier>
    <identifier type="issn">1942-4434</identifier>
    <enrichment key="date_peer_review">14.04.2014</enrichment>
    <author>T. Rack</author>
    <author>S. Zabler</author>
    <author>A. Rack</author>
    <author>Heinrich Riesemeier</author>
    <author>K. Nelson</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Dental implants</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Digital radiography</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Phase-contrast microscopy</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Synchrotron radiography</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Titanium</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>30547</id>
    <completedYear/>
    <publishedYear>2013</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>132</pageFirst>
    <pageLast>140</pageLast>
    <pageNumber/>
    <edition/>
    <issue>2</issue>
    <volume>183</volume>
    <type>article</type>
    <publisherName>Elsevier</publisherName>
    <publisherPlace>San Diego, Calif.</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Unremodeled endochondral bone is a major architectural component of the cortical bone of the rat (Rattus norvegicus)</title>
    <abstract language="eng">The laboratory rat is one of the most frequently-used animal models for studying bone biology and skeletal diseases. Here we show that a substantial portion of the cortical bone of mature rats is primary endochondral bone, consisting of a disorganized arrangement of mineralized collagen fibers. We characterize the structure and mechanical properties of the cortical bone of the rat. We show that the cortical bone consists of two architecturally distinct regions. One region, consisting of well-organized circumferential lamellae (CLB), is located in the endosteal and/or the periosteal regions while another, disorganized region, is located in the more central region of the cortex. Unexpectedly, we found that the disorganized region contains many islands of highly mineralized cartilage.&#13;
&#13;
Micro tomography showed different structural and compositional properties of the two primary structural elements; the CLB region has lower mineral density, lower porosity, larger but fewer blood vessels and fewer lacunae. However, no difference was found in the average lacunar volume. Additionally the mean indentation modulus of the CLB region was lower than that of the disorganized region. The islands of calcified cartilage were found to be extremely stiff, with an indentation modulus of 33.4 ± 3.5 GPa.&#13;
&#13;
We conclude that though the cortical bone of rats is in part lamellar, its architecture is markedly different from that of the cortical bone of humans, a fact that must be borne in mind when using the rat as a model animal for studies of human bone biology and disease.</abstract>
    <parentTitle language="eng">Journal of structural biology</parentTitle>
    <identifier type="old">33522</identifier>
    <identifier type="doi">10.1016/j.jsb.2013.04.010</identifier>
    <identifier type="issn">1047-8477</identifier>
    <identifier type="issn">1095-8657</identifier>
    <enrichment key="date_peer_review">14.04.2014</enrichment>
    <author>A. Shipov</author>
    <author>P. Zaslansky</author>
    <author>Heinrich Riesemeier</author>
    <author>G. Segev</author>
    <author>A. Atkins</author>
    <author>R. Shahar</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Cortical bone</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Endochondral bone</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Lamellar bone</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Disorganized bone</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Cartilage islands</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Cortical bone structure</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Synchrotron based microtomography</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Mechanical properties</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>18566</id>
    <completedYear/>
    <publishedYear>2008</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>876</pageFirst>
    <pageLast>887</pageLast>
    <pageNumber/>
    <edition/>
    <issue>7</issue>
    <volume>30</volume>
    <type>article</type>
    <publisherName>Pergamon Press</publisherName>
    <publisherPlace>Oxford</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">High-resolution tomography of cracks, voids and micro-structure in greywacke and limestone</title>
    <abstract language="eng">Rocks are commonly very heterogeneous materials. Randomly distributed micro-flaws inside the rock are believed to initiate tensile cracks from which shear fractures develop and coalescence through en echelon interactions leads to fracture. In this paper, we describe the results of applying high-resolution X-ray tomography to samples of greywacke and limestone experimentally deformed under unconfined axial shortening at various loads equivalent to different fractions of the sample strength. Mineral grains, pores, micro-cracks and other voids were imaged with a resolution of 10 µm. 3D image analysis enabled us to monitor the initial state of the samples and the changes in them due to compression. Crack morphology is characterized and compared to the micro-structure of the sample before and after deformation. In the greywacke, formation of a macro-crack ~10° oblique to the stress direction is observed. It initiated in fine intergranular material at the top tip of the sample and is composed of tensile fractures connected by wing cracks. None of the voids defined in the initial state fractured, and the crack is interpreted to have started either as a micro-crack which was smaller than the resolution of the tomography, or, as a completely new crack. In the limestone, cracks are observed to initiate in features that are too small to be imaged by the tomography, or also in newly created cracks.</abstract>
    <parentTitle language="eng">Journal of structural geology</parentTitle>
    <identifier type="old">20721</identifier>
    <identifier type="doi">10.1016/j.jsg.2008.03.002</identifier>
    <identifier type="issn">0191-8141</identifier>
    <identifier type="issn">1873-1201</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <enrichment key="date_peer_review">15.12.2008</enrichment>
    <author>S. Zabler</author>
    <author>A. Rack</author>
    <author>I. Manke</author>
    <author>K. Thermann</author>
    <author>J. Tiedemann</author>
    <author>N. Harthill</author>
    <author>Heinrich Riesemeier</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Rock porosity</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Crack formation</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>X-ray imaging</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Micro-tomography</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>3D image analysis</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
  <doc>
    <id>18567</id>
    <completedYear/>
    <publishedYear>2008</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>2035</pageFirst>
    <pageLast>2040</pageLast>
    <pageNumber/>
    <edition/>
    <issue>9</issue>
    <volume>266</volume>
    <type>article</type>
    <publisherName>Elsevier</publisherName>
    <publisherPlace>Amsterdam</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">White beam synchrotron topography using a high resolution digital X-ray imaging detector</title>
    <abstract language="eng">X-ray topography is a well known imaging technique to characterise strain and extended defects in single crystals. Topographs are typically collected on X-ray films. On the one hand such photographic films show a limited dynamic range and the production of films will be discontinued step by step in the near future. On the other hand new imaging detectors improved for X-ray tomography become more and more attractive even for topography because of increasing resolution, dynamic range, speed and active area. In this paper we report about the upgrade of the TOPOTOMO beamline at the synchrotron light source ANKA, Research Centre Karlsruhe, with a high resolution digital camera for the topography use.</abstract>
    <parentTitle language="eng">Nuclear instruments and methods in physics research B</parentTitle>
    <identifier type="old">20722</identifier>
    <identifier type="doi">10.1016/j.nimb.2008.02.065</identifier>
    <identifier type="issn">0168-583X</identifier>
    <identifier type="issn">1872-9584</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <enrichment key="date_peer_review">15.12.2008</enrichment>
    <author>A.N. Danilewsky</author>
    <author>A. Rack</author>
    <author>J. Wittge</author>
    <author>T. Weitkamp</author>
    <author>R. Simon</author>
    <author>Heinrich Riesemeier</author>
    <author>T. Baumbach</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>White beam topography</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Synchrotron radiation</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Digital X-ray detector</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Scintillator</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Synchrotron instrumentation</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Digital radiography</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
  <doc>
    <id>23045</id>
    <completedYear/>
    <publishedYear>2010</publishedYear>
    <thesisYearAccepted/>
    <language>deu</language>
    <pageFirst>692</pageFirst>
    <pageLast>697</pageLast>
    <pageNumber/>
    <edition/>
    <issue>10</issue>
    <volume>52</volume>
    <type>article</type>
    <publisherName>Hanser</publisherName>
    <publisherPlace>München</publisherPlace>
    <creatingCorporation>Bundesanstalt für Materialforschung und -prüfung</creatingCorporation>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="deu">Röntgen-Kanten-Tomografie und -Radiografie zur Untersuchung von Alterungseffekten in Brennstoffzellenmaterialien</title>
    <parentTitle language="deu">MP materials testing</parentTitle>
    <identifier type="old">25612</identifier>
    <identifier type="issn">0025-5300</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <enrichment key="date_peer_review">27.01.2011</enrichment>
    <author>Tobias Arlt</author>
    <author>I. Manke</author>
    <author>K. Wippermann</author>
    <author>A. Schröder</author>
    <author>J. Mergel</author>
    <author>Heinrich Riesemeier</author>
    <author>J. Banhart</author>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Resolution neutron-radiography</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Local current distribution</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Water transport</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Carbon-dioxide</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Methanol</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Platinum</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Oxidation</value>
    </subject>
    <collection role="literaturgattung" number="">Eigenverlag BAM</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
  <doc>
    <id>22730</id>
    <completedYear/>
    <publishedYear>2010</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>26</pageFirst>
    <pageLast>34</pageLast>
    <pageNumber/>
    <edition/>
    <issue>1</issue>
    <volume>10</volume>
    <type>article</type>
    <publisherName>Wiley-VCH</publisherName>
    <publisherPlace>Weinheim</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">In situ synchrotron X-ray radiography investigations of water transport in PEM fuel cells</title>
    <abstract language="eng">Water transport in an operating PEM fuel cell was investigated with synchrotron X-ray radiography with a spatial resolution of 3 µm and a temporal resolution of 5 s. This method allows for the detection of water accumulations with less than 10 µm diameter. We demonstrate that synchrotron X-ray imaging can dramatically expand the possibilities of imaging with high spatial and time resolution, especially as a complement to neutron radiography. Water transport processes from the first appearance of small water accumulations in the gas diffusion layer to their transport into the channel system were analysed in situ. Correlations between local effects such as water formation and operating conditions of the whole system, e.g. power variations, were found. A recently described eruptive water transport mechanism is analysed in detail.</abstract>
    <parentTitle language="eng">Fuel Cells</parentTitle>
    <identifier type="old">25280</identifier>
    <identifier type="doi">10.1002/fuce.200800123</identifier>
    <identifier type="issn">1615-6846</identifier>
    <identifier type="issn">1615-6854</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <enrichment key="date_peer_review">13.12.2010</enrichment>
    <author>I. Manke</author>
    <author>C. Hartnig</author>
    <author>N. Kardjilov</author>
    <author>Heinrich Riesemeier</author>
    <author>Jürgen Goebbels</author>
    <author>R. Kuhn</author>
    <author>P. Krüger</author>
    <author>J. Banhart</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Fuel cell</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Gas diffusion layer</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Imaging</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Synchrotron</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>X-ray radiography</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Two-phase flow</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Water transport</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
  <doc>
    <id>20583</id>
    <completedYear/>
    <publishedYear>2007</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>5045</pageFirst>
    <pageLast>5055</pageLast>
    <pageNumber/>
    <edition/>
    <issue>15</issue>
    <volume>55</volume>
    <type>article</type>
    <publisherName>Elsevier Science</publisherName>
    <publisherPlace>Kidlington</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Coarsening of grain-refined semi-solid Al-Ge32 alloy: X-ray microtomography and in situ radiography</title>
    <parentTitle language="eng">Acta materialia</parentTitle>
    <identifier type="old">22891</identifier>
    <identifier type="doi">10.1016/j.actamat.2007.05.028</identifier>
    <identifier type="issn">1359-6454</identifier>
    <identifier type="issn">1873-2453</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <enrichment key="date_peer_review">07.12.2009</enrichment>
    <author>S. Zabler</author>
    <author>A. Rueda</author>
    <author>A. Rack</author>
    <author>Heinrich Riesemeier</author>
    <author>P. Zaslansky</author>
    <author>I. Manke</author>
    <author>F. Garcia-Moreno</author>
    <author>J. Banhart</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Microtomography</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Radiography</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>2D/3D imageanalysis</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Technical binary alloys</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>LSW</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
  <doc>
    <id>20577</id>
    <completedYear/>
    <publishedYear>2009</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1559</pageFirst>
    <pageLast>1562</pageLast>
    <pageNumber/>
    <edition/>
    <issue>8</issue>
    <volume>11</volume>
    <type>article</type>
    <publisherName>Elsevier</publisherName>
    <publisherPlace>Amsterdam</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">High resolution synchrotron X-ray investigation of carbon dioxide evolution in operating direct methanol fuel cells</title>
    <abstract language="eng">The carbon dioxide evolution and bubble formation in an operating fuel has been studied by means of synchrotron X-ray radiography. Two different observation directions have been chosen: a through-plane insight has been employed to track the formation of bubbles starting at the corner of the lands of the flow field; a depth profile of the carbon dioxide evolution has been derived from cross sectional studies describing an affected area of up to 100 µm. The dynamics of the bubble formation and detachment of the bubbles from the position of formation is strongly correlated with the current density. Cracks and breaks in the catalyst layer which result from the preparation process are visible under operating conditions and a possible swelling of the catalyst layer does not reach a complete vanishing of the cracks.</abstract>
    <parentTitle language="eng">Electrochemistry communications</parentTitle>
    <identifier type="old">22885</identifier>
    <identifier type="doi">10.1016/j.elecom.2009.05.047</identifier>
    <identifier type="issn">1388-2481</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <enrichment key="date_peer_review">07.12.2009</enrichment>
    <author>C. Hartnig</author>
    <author>I. Manke</author>
    <author>J. Schloesser</author>
    <author>P. Krüger</author>
    <author>R. Kuhn</author>
    <author>Heinrich Riesemeier</author>
    <author>K. Wippermann</author>
    <author>J. Banhart</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>DMFC</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Carbon dioxide evolution</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Synchrotron radiography</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>In situ study</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Cross section</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Through-plane</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
  <doc>
    <id>22121</id>
    <completedYear/>
    <publishedYear>2010</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>289</pageFirst>
    <pageLast>294</pageLast>
    <pageNumber/>
    <edition/>
    <issue>2</issue>
    <volume>17</volume>
    <type>article</type>
    <publisherName>Blackwell Publishing</publisherName>
    <publisherPlace>Oxford</publisherPlace>
    <creatingCorporation>International Union of Crystallography</creatingCorporation>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">In vitro synchrotron-based radiography of micro-gap formation at the implant-abutment interface of two-piece dental implants</title>
    <abstract language="eng">Micro-gap formation at the implant-abutment interface of two-piece dental implants was investigated in vitro using high-resolution radiography in combination with hard X-ray synchrotron radiation. Images were taken with the specimen under different mechanical loads of up to 100 N. The aim of this investigation was to prove the existence of micro-gaps for implants with conical connections as well as to study the mechanical behavior of the mating zone of conical implants during loading. Synchrotron-based radiography in comparison with classical laboratory radiography yields high spatial resolution in combination with high contrast even when exploiting micro-sized features in highly attenuating objects. The first illustration of a micro-gap which was previously indistinguishable by laboratory methods underlines that the complex micro-mechanical behavior of implants requires further in vitro investigations where synchrotron-based micro-imaging is one of the prerequisites.</abstract>
    <parentTitle language="eng">Journal of synchrotron radiation</parentTitle>
    <identifier type="old">24621</identifier>
    <identifier type="doi">10.1107/S0909049510001834</identifier>
    <identifier type="issn">0909-0495</identifier>
    <identifier type="issn">1600-5775</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <enrichment key="date_peer_review">14.10.2010</enrichment>
    <author>A. Rack</author>
    <author>T. Rack</author>
    <author>M. Stiller</author>
    <author>Heinrich Riesemeier</author>
    <author>S. Zabler</author>
    <author>K. Nelson</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>X-ray imaging</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Dental implants</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Digital radiography</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Implant-abutment interface</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
  <doc>
    <id>22122</id>
    <completedYear/>
    <publishedYear>2010</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>041914-1 - 041914-3</pageFirst>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue>4</issue>
    <volume>97</volume>
    <type>article</type>
    <publisherName>American Institute of Physics</publisherName>
    <publisherPlace>Melville, NY</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Local structure and site substitution in amorphous and quasicrystalline Zr-Ti-Ni-(Cu) alloys</title>
    <abstract language="eng">Local structures of amorphous and quasicrystalline phases in Zr–Ti–Ni and Zr–Ti–Ni–Cu alloys have been studied by means of x-ray absorption spectroscopy. The amorphous phases show a high degree of icosahedral short-range order. In all investigated systems local order around Cu and Ni atoms was found to be nearly identical pointing to site substitution of Ni by Cu as the reason for an improved glass forming ability when Ni is partly substituted by Cu. The results strengthen an icosahedral cluster based approach for the structure of metallic glasses and indicate the importance of the medium-range order on glass formation.</abstract>
    <parentTitle language="eng">Applied physics letters</parentTitle>
    <identifier type="old">24622</identifier>
    <identifier type="doi">10.1063/1.3467265</identifier>
    <identifier type="issn">0003-6951</identifier>
    <identifier type="issn">1077-3118</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <enrichment key="date_peer_review">14.10.2010</enrichment>
    <author>S. Mechler</author>
    <author>G. Schumacher</author>
    <author>V. Koteski</author>
    <author>Heinrich Riesemeier</author>
    <author>F. Schäfers</author>
    <author>H.-E. Mahnke</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Copper alloys</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Frustration</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Glass structure</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Metallic glasses</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>X-ray absorption spectra</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
  <doc>
    <id>22123</id>
    <completedYear/>
    <publishedYear>2010</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>49</pageFirst>
    <pageLast>59</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume>7</volume>
    <type>article</type>
    <publisherName>The Royal Society</publisherName>
    <publisherPlace>London</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Going beyond histology. Synchrotron micro-computed tomography as a methodology for biological tissue characterization: from tissue morphology to individual cells</title>
    <abstract language="eng">Current light microscopic methods such as serial sectioning, confocal microscopy or multiphoton microscopy are severely limited in their ability to analyse rather opaque biological structures in three dimensions, while electron optical methods offer either a good three-dimensional topographic visualization (scanning electron microscopy) or high-resolution imaging of very thin samples (transmission electron microscopy). However, sample preparation commonly results in a significant alteration and the destruction of the three-dimensional integrity of the specimen. Depending on the selected photon energy, the interaction between X-rays and biological matter provides semi-transparency of the specimen, allowing penetration of even large specimens. Based on the projection-slice theorem, angular projections can be used for tomographic imaging. This method is well developed in medical and materials science for structure sizes down to several micrometres and is considered as being non-destructive. Achieving a spatial and structural resolution that is sufficient for the imaging of cells inside biological tissues is difficult due to several experimental conditions. A major problem that cannot be resolved with conventional X-ray sources are the low differences in density and absorption contrast of cells and the surrounding tissue. Therefore, X-ray monochromatization coupled with a sufficiently high photon flux and coherent beam properties are key requirements and currently only possible with synchrotron-produced X-rays. In this study, we report on the three-dimensional morphological characterization of articular cartilage using synchrotron-generated X-rays demonstrating the spatial distribution of single cells inside the tissue and their quantification, while comparing our findings to conventional histological techniques.</abstract>
    <parentTitle language="eng">Interface : journal of the Royal Society</parentTitle>
    <identifier type="old">24623</identifier>
    <identifier type="doi">10.1098/rsif.2008.0539</identifier>
    <identifier type="issn">1742-5689</identifier>
    <identifier type="issn">1742-5662</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <enrichment key="date_peer_review">14.10.2010</enrichment>
    <author>R. Zehbe</author>
    <author>A. Haibel</author>
    <author>Heinrich Riesemeier</author>
    <author>U. Gross</author>
    <author>C.J. Kirkpatrick</author>
    <author>H. Schubert</author>
    <author>C. Brochhausen</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Cartilage</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Chondrocyte</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Synchrotron micro-computed tomography</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Histology</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Scanning electron microscopy</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Three-dimensional imaging</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
  <doc>
    <id>11970</id>
    <completedYear/>
    <publishedYear>1997</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>543</pageFirst>
    <pageLast>547</pageLast>
    <pageNumber/>
    <edition/>
    <issue>5</issue>
    <volume>357</volume>
    <type>article</type>
    <publisherName>Springer</publisherName>
    <publisherPlace>Berlin</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Rock porosity determination by combination of X-ray computerized tomography with mercury porosimetry</title>
    <abstract language="eng">Abstract First results are described of coupling of mercury porosimetry with X-ray computerized tomography (CT) as a new combination technique for rock porosity studies. This technique is suitable for rock samples with a pronounced mercury intrusion-extrusion hysteresis and includes CT measurements before and after mercury intrusion. The entrapped portion of mercury, when the pressure after the intrusion into the rock sample is reduced to 0.1 MPa, serves as a contrast agent in the porous network to localize spatial distribution of rock porosity by CT. The results obtained show that the mercury intrusion and therefore the porosity were quite different for the separate mineral phases. Therefore the combination of mercury porosimetry and computer tomography can give 3-D data on mineral-specific porosity distributions with additional pore size information. In contrast to mercury porosimetry as a single method, results of the combination technique with CT represent a direct visualization of porosity variation and do not depend on any special pore network model.</abstract>
    <parentTitle language="eng">Fresenius' journal of analytical chemistry</parentTitle>
    <identifier type="old">13668</identifier>
    <identifier type="issn">0937-0633</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <author>Peter Klobes</author>
    <author>Heinrich Riesemeier</author>
    <author>Klaus Meyer</author>
    <author>Jürgen Goebbels</author>
    <author>k.-H. Hellmuth</author>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
  <doc>
    <id>13869</id>
    <completedYear/>
    <publishedYear>2006</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>8584</pageFirst>
    <pageLast>8597</pageLast>
    <pageNumber/>
    <edition/>
    <issue>19</issue>
    <volume>14</volume>
    <type>article</type>
    <publisherName>Optical Society of America</publisherName>
    <publisherPlace>Washington, DC</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Fresnel-propagated imaging for the study of human tooth dentin by partially coherent x-ray tomography</title>
    <abstract language="eng">Recent methods of phase imaging in x-ray tomography allow the visualization of features that are not resolved in conventional absorption microtomography. Of these, the relatively simple setup needed to produce Fresnel-propagated tomograms appears to be well suited to probe tooth-dentin where composition as well as microstructure vary in a graded manner. By adapting analytical propagation approximations we provide predictions of the form of the interference patterns in the 3D images, which we compare to numerical simulations as well as data obtained from measurements of water immersed samples. Our observations reveal details of the tubular structure of dentin, and may be evaluated similarly to conventional absorption tomograms. We believe this exemplifies the power of Fresnel-propagated imaging as a form of 3D microscopy, well suited to quantify gradual microstructural-variations in teeth and similar tissues.</abstract>
    <parentTitle language="eng">Optics express</parentTitle>
    <identifier type="old">15634</identifier>
    <identifier type="doi">10.1364/OE.14.008584</identifier>
    <identifier type="issn">1094-4087</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <enrichment key="date_peer_review">20.11.2006</enrichment>
    <author>S. Zabler</author>
    <author>Heinrich Riesemeier</author>
    <author>P. Fratzl</author>
    <author>P. Zaslansky</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Fourier optics</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Partial coherence in imaging</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Tomography</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>X-ray imaging</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Phase modulation</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Dentistry</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>High resolution Sy-CT</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Microstructure in human Teeth</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
  <doc>
    <id>23962</id>
    <completedYear/>
    <publishedYear>2010</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1436</pageFirst>
    <pageLast>1438</pageLast>
    <pageNumber/>
    <edition/>
    <issue>10</issue>
    <volume>12</volume>
    <type>article</type>
    <publisherName>Elsevier</publisherName>
    <publisherPlace>Amsterdam</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">In-situ synchrotron X-ray radiography on high temperature polymer electrolyte fuel cells</title>
    <abstract language="eng">In contrast to classical low temperature polymer electrolyte fuel cells (LT-PEFCs), the membrane conductivity in high temperature polymer electrolyte fuel cells (HT-PEFCs) (operating temperature ~ 160 °C) is based on proton transport within phosphorus-oxygen acids at different levels of hydration, orthophosphoric acid (H3PO4) being the simplest example. We present for the first time in-situ synchrotron X-ray radiography measurements applied to a HT-PEFC to gain insight into the local composition of the membrane electrode assembly (MEA) under dynamic operating conditions. Transmission changes during the radiographic measurements exhibit a clear influence of the formation of product water on the membrane composition.</abstract>
    <parentTitle language="eng">Electrochemistry communications</parentTitle>
    <identifier type="old">26575</identifier>
    <identifier type="doi">10.1016/j.elecom.2010.08.002</identifier>
    <identifier type="issn">1388-2481</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <enrichment key="date_peer_review">05.07.2011</enrichment>
    <author>W. Maier</author>
    <author>Tobias Arlt</author>
    <author>C. Wannek</author>
    <author>I. Manke</author>
    <author>Heinrich Riesemeier</author>
    <author>P. Krüger</author>
    <author>J. Scholta</author>
    <author>W. Lehnert</author>
    <author>J. Banhart</author>
    <author>D. Stolten</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>HT-PEFC</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Synchrotron x-ray radiography</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Membrane electrode assembly (MEA)</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Phosphoric acid</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
  <doc>
    <id>24338</id>
    <completedYear/>
    <publishedYear>2011</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1802</pageFirst>
    <pageLast>1812</pageLast>
    <pageNumber/>
    <edition/>
    <issue>9</issue>
    <volume>26</volume>
    <type>article</type>
    <publisherName>Royal Society of Chemistry</publisherName>
    <publisherPlace>London</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Synchrotron radiation and laboratory micro X-ray computed tomography - useful tools for the material identification of prehistoric objects made of ivory, bone or antler</title>
    <abstract language="eng">Archaeological bone, ivory and antler, as well as objects manufactured from them, are largely studied to extract as much information as possible from these materials. Among others, one key question in archaeology is the exact identification of the material. Even if the identification of different kinds of osseous material seems to be trivial in many cases, it can be a difficult issue when small, heavily carved and more or less altered ancient objects are concerned. This study was focused on the determination of parameters allowing the distinction of archaeological ivory, bone and antler in order to identify the raw material used for the manufacture of prehistoric objects. The high performance of synchrotron radiation (SR) and laboratory-based micro X-ray computed tomography (microCT), providing highly resolved three-dimensional information on the micromorphology, permitted the establishment of such distinctive features of modern references of ivory, antler, land mammal and whale bones: ivory shows characteristic tubular pores with a diameter of about 1 to 2 µm, bone and antler show typical osteon structures. In our measured references, antler shows on average larger and more elongated shaped pores of the osteons compared to terrestrial mammal bone. This feature however depends very much on the original localization of the studied sample within the antler. Whale bones can be distinguished from the other osseous materials by a cancellous, osteoporotic-like structure with irregularly distributed rounded porosities with diameters reaching up to 500 µm. These characteristics have also been tested on determined Palaeolithic fragments, as diagenetic changes during burial have to be considered and may lead to the modification of the parameters established on the basis of modern bone references. In general, the chemical composition of bone objects can change drastically over time while micromorphological features, as evidenced by microCT, seem to be less susceptible to such alterations. In addition, microCT enables the comparison of inner and possibly less altered parts of the objects, and can be considered as completely non-destructive for small mineralised prehistoric objects. In this study, specific morphological features allowing the distinction of ivory and of whale bone from other bone and antler material were determined, even for altered materials dating back to Palaeolithic periods. Thus, we provide, in addition to archaeozoological, chemical and isotopic markers, a new non-destructive tool to identify some raw materials used for the fabrication of osseous objects ranging from recent to prehistoric periods.</abstract>
    <parentTitle language="eng">Journal of analytical atomic spectrometry</parentTitle>
    <identifier type="old">26993</identifier>
    <identifier type="doi">10.1039/c0ja00246a</identifier>
    <identifier type="issn">0267-9477</identifier>
    <identifier type="issn">1364-5544</identifier>
    <enrichment key="date_peer_review">22.09.2011</enrichment>
    <author>I. Reiche</author>
    <author>K. Müller</author>
    <author>Andreas Staude</author>
    <author>Jürgen Goebbels</author>
    <author>Heinrich Riesemeier</author>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>25240</id>
    <completedYear/>
    <publishedYear>2011</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>123</pageFirst>
    <pageLast>127</pageLast>
    <pageNumber/>
    <edition/>
    <issue>1</issue>
    <volume>649</volume>
    <type>article</type>
    <publisherName>Elsevier B.V.</publisherName>
    <publisherPlace>Amsterdam</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Coherence preservation and beam flatness of a single-bounce multilayer monochromator (beamline ID19-ESRF)</title>
    <abstract language="eng">Larger spectral bandwidth and higher photon flux density are the major advantages of multilayer monochromators over crystal-based devices. Especially for synchrotron-based hard X-ray microimaging applications the increased photon flux density is important in order to achieve high contrast and resolution in space and/or time. However, the modifications on the beam profile induced by reflection on a multilayer are a drawback which can seriously harm the performance of such a monochromator. A recent study [A. Rack, T. Weitkamp, M. Riotte, D. Grigoriev, T. Rack, L. Helfen, T. Baumbach, R. Dietsch, T. Holz, M. Krämer, F. Siewert, M. Meduna, P. Cloetens, E. Ziegler, J. Synchrotron Radiat. 17 (2010) 496510] has shown that the modifications in terms of beam flatness and coherence preservation can be influenced via the material composition of the multilayer coating. The present article extends this knowledge by studying further material compositions used on a daily basis for hard X-ray monochromatization at the beamline ID19 of the European Synchrotron Radiation Facility.</abstract>
    <parentTitle language="eng">Nuclear instruments and methods in physics research A</parentTitle>
    <identifier type="old">27948</identifier>
    <identifier type="doi">10.1016/j.nima.2010.11.069</identifier>
    <identifier type="issn">0168-9002</identifier>
    <identifier type="issn">0167-5087</identifier>
    <enrichment key="date_peer_review">05.01.2012</enrichment>
    <author>A. Rack</author>
    <author>T. Weitkamp</author>
    <author>I. Zanette</author>
    <author>C. Morawe</author>
    <author>A. Vivo Rommeveaux</author>
    <author>P. Tafforeau</author>
    <author>P. Cloetens</author>
    <author>E. Ziegler</author>
    <author>T. Rack</author>
    <author>A. Cecilia</author>
    <author>P. Vagovic</author>
    <author>E. Harmann</author>
    <author>R. Dietsch</author>
    <author>Heinrich Riesemeier</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Multilayer mirrors</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>X-rays</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>X-ray optics</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Coherence</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>X-ray monochromators</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>X-ray imaging</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>X-ray phase contrast</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Synchrotron radiation</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>25348</id>
    <completedYear/>
    <publishedYear>2011</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>379</pageFirst>
    <pageLast>386</pageLast>
    <pageNumber/>
    <edition/>
    <issue>1</issue>
    <volume>41</volume>
    <type>article</type>
    <publisherName/>
    <publisherPlace>Pennington, NJ, USA</publisherPlace>
    <creatingCorporation>Electrochemical Society</creatingCorporation>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Investigation of carbon fiber gas diffusion layers by means of synchrotron X-ray tomography</title>
    <abstract language="eng">The 3-dimensional spatial distribution of liquid water in different gas diffusion layer (GDL) materials was analyzed using synchrotron X-ray tomography. The capability of the method was demonstrated by virtually separating the GDL components in order to facilitate individual analysis of fiber material, liquid water and gas filled pore spaces. The influence of hydrophobic surface treatment on the water distribution in the GDL was illustrated by analyzing three GDL materials with different degrees of hydrophobicity. In the least hydrophobic sample, liquid water tends to form larger clusters which stretch out about several hundred µm inside the porous GDL. In contrast, only small water clusters were found in the strongly hydrophobic material with high Polytetrafluoroethylene (PTFE)-content as the liquid is partially pressed out of the GDL. Additionally, the influence of fiber orientation on the water distribution in the felt material was demonstrated.</abstract>
    <parentTitle language="eng">ECS transactions</parentTitle>
    <identifier type="old">28058</identifier>
    <identifier type="doi">10.1149/1.3635571</identifier>
    <identifier type="issn">1938-6737</identifier>
    <identifier type="issn">1938-5862</identifier>
    <author>C. Tötzke</author>
    <author>I. Manke</author>
    <author>C. Hartnig</author>
    <author>R. Kuhn</author>
    <author>Heinrich Riesemeier</author>
    <author>J. Banhart</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Synchrotron X-ray tomography</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Fuel cell</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Gas diffusion layer (GDL) materials</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Analysis of fiber material</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>26250</id>
    <completedYear/>
    <publishedYear>2011</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>259</pageFirst>
    <pageLast>271</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume>35</volume>
    <type>article</type>
    <publisherName>Presses Univ. de Rennes</publisherName>
    <publisherPlace>Rennes</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Rectangular beads from the final gravettian level of the Abri Pataud: raw material identification and its archaeological implications</title>
    <abstract language="eng">The Final Gravettian level (level 2) of the abri Pataud (Dordogne, France) yielded a large assemblage of body ornaments that consists essentially of 85 quite standardized rectangular beads. Some uncertainty remained about the raw material in which these small beads were made: mammoth ivory, reindeer antler or bone? Non-invasive methods were employed in order to determine the raw material. First chemical analyses using microbeam Proton Induced X-ray Emission analysis (microPIXE) did not enable us to conclude definitively. Therefore, synchrotron and laboratory X-ray microtomography (microCT) were applied on eight beads and allowed us to identify ivory for all of them except for one, which shows slightly different morphological features.</abstract>
    <parentTitle language="eng">ArcheoSciences : revue d'archéométrie</parentTitle>
    <identifier type="old">29000</identifier>
    <identifier type="issn">1960-1360</identifier>
    <author>C. Vercoutère</author>
    <author>K. Müller</author>
    <author>L. Chiotti</author>
    <author>R. Nespoulet</author>
    <author>Andreas Staude</author>
    <author>Heinrich Riesemeier</author>
    <author>I. Reiche</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Abri Pataud</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Gravettien final</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Ivoire de mammouth</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>MicroPIXE</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>MicroCT</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Perles rectangulaires</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Final Gravettian</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Mammoth ivory</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Rectangular beads</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>27372</id>
    <completedYear/>
    <publishedYear>2013</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>210</pageFirst>
    <pageLast>216</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume>221</volume>
    <type>article</type>
    <publisherName>Elsevier</publisherName>
    <publisherPlace>Amsterdam [u.a.]</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Investigation of the local catalyst distribution in an aged direct methanol fuel cell MEA by means of differential synchrotron X-ray absorption edge imaging with high energy resolution</title>
    <abstract language="eng">Synchrotron X-ray absorption edge imaging with high energy resolution was applied to study aging of fuel cell catalyst materials. The combination of an imaging and a high X-ray energy resolution set-up allows acquiring spatially resolved XAS (XANES and EXAFS) spectra. We analyzed the two-dimensional distribution of Pt and Ru in fresh and aged fuel cell catalysts. Spatially resolved XAS images were taken at the RuK edge and at the PtL3 edge. Taking radiographs above and below the absorption edges provides quantitative information about the thickness of the catalytic materials and additional chemical information. A strong influence of the flow field channels and the structure of the gas diffusion layers on the thicknesses of the catalytic elements were found: a thinner catalyst layer was found below the ribs of the flow field geometries as well as under crossing points of fiber bundles of the woven gas diffusion layers.</abstract>
    <parentTitle language="eng">Journal of power sources</parentTitle>
    <identifier type="old">30182</identifier>
    <identifier type="doi">10.1016/j.jpowsour.2012.08.038</identifier>
    <identifier type="issn">0378-7753</identifier>
    <enrichment key="date_peer_review">12.12.2012</enrichment>
    <author>Tobias Arlt</author>
    <author>I. Manke</author>
    <author>K. Wippermann</author>
    <author>Heinrich Riesemeier</author>
    <author>J. Mergel</author>
    <author>J. Banhart</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>XAS</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>X-ray energy edge</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Membrane electrode assembly</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Direct methanol fuel cell</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Aging mechanism</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>X-ray synchrotron radiography</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>28533</id>
    <completedYear/>
    <publishedYear>2013</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>202</pageFirst>
    <pageLast>209</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume>577</volume>
    <type>article</type>
    <publisherName>Elsevier</publisherName>
    <publisherPlace>Amsterdam</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">3D analysis of micro-deformation in VHCF-loaded nodular cast iron by µCT</title>
    <abstract language="eng">The impact of very high cycle fatigue (VHCF) load conditions on the microstructure of specimens consisting of nodular cast iron is analyzed by means of micro-computed tomography (µCT) utilizing both monochromatic synchrotron radiation and polychromatic X-ray tube radiation. Using 3D µCT, the microstructure in the region of the smallest cross-sections of shouldered round specimens is imaged in different stages of the VHCF loading. By digital image correlation (DIC) of these tomograms strain fields are analyzed three-dimensionally. Strain levels in the range of a few percent were detected. It is proven that a localization of strain allows to predict the site of the crack which precedes and induces the macroscopic failure of the specimens.</abstract>
    <parentTitle language="eng">Materials science and engineering A</parentTitle>
    <identifier type="old">31385</identifier>
    <identifier type="doi">10.1016/j.msea.2013.04.057</identifier>
    <identifier type="issn">0921-5093</identifier>
    <identifier type="issn">1873-4936</identifier>
    <enrichment key="date_peer_review">27.05.2013</enrichment>
    <author>G. Fischer</author>
    <author>J. Nellesen</author>
    <author>N. B. Anar</author>
    <author>Karsten Ehrig</author>
    <author>Heinrich Riesemeier</author>
    <author>W. Tillmann</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>VHCF (very high cycle fatigue)</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>µCT</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Micro-computed tomography</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Strain analysis</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Nodular cast iron</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>1835</id>
    <completedYear/>
    <publishedYear>2001</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>204</pageFirst>
    <pageLast>210</pageLast>
    <pageNumber/>
    <edition/>
    <issue>2</issue>
    <volume>16</volume>
    <type>article</type>
    <publisherName>Bauverlag</publisherName>
    <publisherPlace>Bad Honnef</publisherPlace>
    <creatingCorporation>Deutsche Keramische Gesellschaft</creatingCorporation>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Green Body Characterization by Computed Tomography with Synchrotron Radiation</title>
    <parentTitle language="eng">Fortschrittsberichte der Deutschen Keramischen Gesellschaft</parentTitle>
    <identifier type="old">1701</identifier>
    <identifier type="issn">0177-6983</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <enrichment key="eventName">Symposium Grünkörpercharakterisierung ; 8. Keramik-Tag der BAM</enrichment>
    <enrichment key="eventPlace">Berlin, Germany</enrichment>
    <enrichment key="eventStart">2001-05-28</enrichment>
    <enrichment key="eventEnd">2001-05-29</enrichment>
    <author>Torsten Rabe</author>
    <author>Jürgen Goebbels</author>
    <author>Gerd Weidemann</author>
    <author>Heinrich Riesemeier</author>
    <author>Rainer Rudert</author>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
  <doc>
    <id>26435</id>
    <completedYear/>
    <publishedYear>2012</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1060</pageFirst>
    <pageLast>1067</pageLast>
    <pageNumber/>
    <edition/>
    <issue>10</issue>
    <volume>43</volume>
    <type>article</type>
    <publisherName>Pergamon Press</publisherName>
    <publisherPlace>Oxford</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Imaging of articular cartilage - data matching using X-ray tomography, SEM, FIB slicing and conventional histology</title>
    <abstract language="eng">The study was aimed at demonstrating a true cellular resolution for articular cartilage using synchrotron radiation-based X-ray microcomputed tomography (SR-µCT) with a sample-specific optimization of the phase contrast. The generated tomographic data were later used to prepare a matching histological sample from the full volume specimen.&#13;
&#13;
We used highly coherent and monochromatic X-rays from a synchrotron source to image a tissue sample of bovine articular cartilage after deparaffinization. Phase contrast enhancement was achieved by using five different sample to detector distances for the same X-ray energy. After tomography, the sample was re-embedded into resin while retaining a dedicated sample orientation for subsequent sectioning and polishing, which was conducted until a previously defined spatial position was achieved. The protocol for resin embedding was developed to inhibit morphological changes during embedding. Giemsa staining was applied for better structural and morphological discrimination. Data from tomography and lightmicroscopy were exactly matched and finally compared to results from FIB/SEM imaging. Image detail was achieved at a single cell resolution. Image detail was achieved at a single cell resolution, which has been estimated to be 0.833 µm/voxel in the tomographic data.&#13;
&#13;
SR-µCT with optimized phase contrast properties represents a method to investigate biological tissues in certain areas of interest, where true cellular resolution or enhanced volumetric imaging is needed. In this study, we demonstrate that this method can compete with conventional histology using light microscopy but even surpasses it due to the possibility of retrieving volumetric data.</abstract>
    <parentTitle language="eng">Micron</parentTitle>
    <identifier type="old">29202</identifier>
    <identifier type="doi">10.1016/j.micron.2012.05.001</identifier>
    <identifier type="issn">0047-7206</identifier>
    <identifier type="issn">0968-4328</identifier>
    <enrichment key="date_peer_review">10.09.2012</enrichment>
    <author>R. Zehbe</author>
    <author>Heinrich Riesemeier</author>
    <author>C.J. Kirkpatrick</author>
    <author>C. Brochhausen</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Synchrotron radiation-based µCT</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Phase contrast</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>FIB/SEM imaging</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Histology</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Articular cartilage</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Data matching</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>18656</id>
    <completedYear/>
    <publishedYear>2008</publishedYear>
    <thesisYearAccepted/>
    <language>deu</language>
    <pageFirst>609</pageFirst>
    <pageLast>614</pageLast>
    <pageNumber/>
    <edition/>
    <issue>10</issue>
    <volume>50</volume>
    <type>article</type>
    <publisherName>Hanser</publisherName>
    <publisherPlace>München</publisherPlace>
    <creatingCorporation>Bundesanstalt für Materialforschung und -prüfung</creatingCorporation>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="deu">Wassermanagement in Brennstoffzellen - die Bedeutung von hochauflösenden zerstörungsfreien Untersuchungsmethoden</title>
    <abstract language="deu">Ein effektives Wassermanagement ist ein wichtiger Aspekt in der Entwicklung von Brennstoffzellen hinsichtlich Langzeitstabilität und Optimierung der Leistungsfähigkeit. Eine zentrale Rolle spielt dabei die Gasdiffusionslage, die für die gleichmäßige Verteilung der Reaktionsgase auf die elektrochemisch aktive Schicht (Katalysator) sorgen soll. In diesem Beitrag werden gemeinsame Forschungsaktivitäten des Helmholtz-Zentrums Berlin für Materialien und Energie (Entwicklung bildgebender Verfahren) sowie des Zentrums für Sonnenenergie- und Wasserstoff-Forschung (ZSW, Entwicklung von Brennstoffzellen) vorgestellt. Im Rahmen dieser Kooperation werden die Entstehung, die Verteilung und der Transport von flüssigem Wasser, kurz das Wassermanagement, unter Betriebsbedingungen untersucht. Mittels Synchrotronradiografie und -tomografie werden kleinste Wassercluster in der Gasdiffusionslage detektiert. Die gewonnenen Erkenntnisse dienen der Modifikation und einer gezielten Auswahl der eingesetzten Materialien.</abstract>
    <parentTitle language="deu">MP materials testing</parentTitle>
    <identifier type="old">20816</identifier>
    <identifier type="issn">0025-5300</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <enrichment key="date_peer_review">08.01.2009</enrichment>
    <author>C. Hartnig</author>
    <author>R. Kuhn</author>
    <author>P. Krüger</author>
    <author>I. Manke</author>
    <author>N. Kardjilov</author>
    <author>Jürgen Goebbels</author>
    <author>Bernd R. Müller</author>
    <author>Heinrich Riesemeier</author>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Synchrotronstrahlung</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Brennstoffzellen</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Materialcharakterisierung</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Zerstörungsfrei</value>
    </subject>
    <collection role="literaturgattung" number="">Eigenverlag BAM</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
  <doc>
    <id>1171</id>
    <completedYear/>
    <publishedYear>2001</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>703</pageFirst>
    <pageLast>706</pageLast>
    <pageNumber/>
    <edition/>
    <issue>1</issue>
    <volume>467-468</volume>
    <type>article</type>
    <publisherName>North-Holland</publisherName>
    <publisherPlace>Amsterdam</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">BAMlin - the first hard X-ray beamline at BESSY II</title>
    <abstract language="eng">The first hard X-ray beamline at BESSY II will be installed by BAM and PTB at a superconducting 7 T wavelength shifter. The main optical elements of the beamline are a Double-Multilayer-Monochromator and a Double-Crystal-Monochromator. The two devices can be used separately or in-line. Main applications of monochromatic radiation with photon energies up to 50 keV are X-ray fluorescence analysis, micro-computed tomography, X-ray topography, detector calibration and reflectometry. Calculable undispersed radiation up to 200 keV will be available for radiometric applications.</abstract>
    <parentTitle language="eng">Nuclear instruments and methods in physics research A</parentTitle>
    <identifier type="old">696</identifier>
    <identifier type="doi">10.1016/S0168-9002(01)00466-1</identifier>
    <identifier type="issn">0168-9002</identifier>
    <identifier type="issn">0167-5087</identifier>
    <enrichment key="date_peer_review">12.10.2001</enrichment>
    <author>Bernd R. Müller</author>
    <author>Wolf Görner</author>
    <author>Manfred P. Hentschel</author>
    <author>Heinrich Riesemeier</author>
    <author>M. Krumrey</author>
    <author>G. Ulm</author>
    <author>W. Diete</author>
    <author>U. Klein</author>
    <author>R. Frahm</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Double-Multilayer-Monochromator with meridional bender</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Double-Crystal-Monochromator with sagittal bender</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>X-ray fluorescence analysis</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Micro-computed tomography</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>X-ray topography</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Detector calibration</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Reflectometry</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Weder Datei noch physisches Exemplar vorhanden ("No Access")</collection>
  </doc>
  <doc>
    <id>17738</id>
    <completedYear/>
    <publishedYear>2008</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>327</pageFirst>
    <pageLast>344</pageLast>
    <pageNumber/>
    <edition/>
    <issue>2</issue>
    <volume>586</volume>
    <type>article</type>
    <publisherName>North-Holland</publisherName>
    <publisherPlace>Amsterdam</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">High resolution synchrotron-based radiography and tomography using hard X-rays at the BAMline (BESSY II)</title>
    <abstract language="eng">The use of high brilliance and partial coherent synchrotron light for radiography and computed tomography (CT) allows to image micro-structured, multi-component specimens with different contrast modes and resolutions up to submicrometer range. This is of high interest for materials research, life science and non-destructive evaluation applications. An imaging setup for microtomography and radiography installed at BESSY II (a third generation synchrotron light source located in Berlin, Germany) as part of its first hard X-ray beamline (BAMline) can now be used for absorption, refraction as well as phase contrast  dedicated to inhouse research and applications by external users. Monochromatic synchrotron light between 6 keV and 80 keV is attained via a fully automated double multilayer monochromator. For imaging applications the synchrotron beam transmitted by the sample is converted with a scintillator into visible light. By use of microscope optics this luminescence image is then projected onto, e.g., a CCD chip. Several scintillating materials are used in order to optimise the performance of the detector system. Different optical systems are available for imaging ranging from a larger field of view and moderate resolutions (macroscope  up to 14 mm x 14 mm field of view) to high resolution (microscope  down to 0.35 μm pixel size), offering magnifications from 1.8× to 40×. Additionally asymmetric cut Bragg crystals in front of the scintillator can be used for a further magnification in one dimension by a factor of about 20. Slow and fast cameras are available, with up to 16 bit dynamic range. We show the suitability of the setup for numerous applications from materials research and life science.</abstract>
    <parentTitle language="eng">Nuclear instruments and methods in physics research A</parentTitle>
    <identifier type="old">19819</identifier>
    <identifier type="doi">10.1016/j.nima.2007.11.020</identifier>
    <identifier type="issn">0168-9002</identifier>
    <identifier type="issn">0167-5087</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <enrichment key="date_peer_review">28.07.2008</enrichment>
    <author>A. Rack</author>
    <author>S. Zabler</author>
    <author>Bernd R. Müller</author>
    <author>Heinrich Riesemeier</author>
    <author>Gerd Weidemann</author>
    <author>Axel Lange</author>
    <author>Jürgen Goebbels</author>
    <author>Manfred P. Hentschel</author>
    <author>Wolf Görner</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Microtomography</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Non-destructive evaluation</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Synchrotron instrumentation</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Coherent imaging</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>X-ray refraction</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Phase contrast</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Holotomography</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Synchrotron-CT</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Scintillator</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Bragg magnification</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
  <doc>
    <id>23044</id>
    <completedYear/>
    <publishedYear>2010</publishedYear>
    <thesisYearAccepted/>
    <language>deu</language>
    <pageFirst>712</pageFirst>
    <pageLast>717</pageLast>
    <pageNumber/>
    <edition/>
    <issue>10</issue>
    <volume>52</volume>
    <type>article</type>
    <publisherName>Hanser</publisherName>
    <publisherPlace>München</publisherPlace>
    <creatingCorporation>Bundesanstalt für Materialforschung und -prüfung</creatingCorporation>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="deu">Dreidimensionale Untersuchung der Wasserverteilung in einer Miniatur-PEM-Brennstoffzelle</title>
    <parentTitle language="deu">MP materials testing</parentTitle>
    <identifier type="old">25611</identifier>
    <identifier type="issn">0025-5300</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <enrichment key="date_peer_review">27.01.2011</enrichment>
    <author>P. Krüger</author>
    <author>Henning Markötter</author>
    <author>M. Klages</author>
    <author>J. Haußmann</author>
    <author>Tobias Arlt</author>
    <author>Heinrich Riesemeier</author>
    <author>C. Hartnig</author>
    <author>J. Banhart</author>
    <author>I. Manke</author>
    <author>J. Scholta</author>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Resolution neutron-radiography</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Local current distribution</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Cells</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Quantification</value>
    </subject>
    <collection role="literaturgattung" number="">Eigenverlag BAM</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
  <doc>
    <id>26434</id>
    <completedYear/>
    <publishedYear>2012</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>7757</pageFirst>
    <pageLast>7761</pageLast>
    <pageNumber/>
    <edition/>
    <issue>9</issue>
    <volume>37</volume>
    <type>article</type>
    <publisherName>Elsevier</publisherName>
    <publisherPlace>Oxford</publisherPlace>
    <creatingCorporation>International Association for Hydrogen Energy</creatingCorporation>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Visualization of the water distribution in perforated gas diffusion layers by means of synchrotron X-ray radiography</title>
    <abstract language="eng">Perforated gas diffusion layers (GDLs) of polymer electrolyte membrane fuel cells (PEMFCs) were investigated by means of in-situ synchrotron X-ray radiography during operation. We found a strong influence of perforations on the water distribution and transport in the investigated Toray TGP-H-090 GDL. The water occurs mainly around the perforations, while the holes themselves show varying water distributions. Some remain dry, while most of them fill up with liquid water after a certain period or might serve as drainage volume for effective water transport.</abstract>
    <parentTitle language="eng">International journal of hydrogen energy</parentTitle>
    <identifier type="old">29201</identifier>
    <identifier type="doi">10.1016/j.ijhydene.2012.01.141</identifier>
    <identifier type="issn">0360-3199</identifier>
    <enrichment key="date_peer_review">10.09.2012</enrichment>
    <author>Henning Markötter</author>
    <author>R. Alink</author>
    <author>J. Haußmann</author>
    <author>K. Dittmann</author>
    <author>Tobias Arlt</author>
    <author>F. Wieder</author>
    <author>C. Tötzke</author>
    <author>M. Klages</author>
    <author>C. Reiter</author>
    <author>Heinrich Riesemeier</author>
    <author>J. Scholta</author>
    <author>D. Gerteisen</author>
    <author>J. Banhart</author>
    <author>I. Manke</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Polymer electrolyte membrane fuel cell (PEMFC)</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Radiography</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Synchrotron</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>X-ray imaging</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Perforated gas diffusion layer (GDL)</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Water transport</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>26433</id>
    <completedYear/>
    <publishedYear>2012</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1</pageFirst>
    <pageLast>26</pageLast>
    <pageNumber/>
    <edition/>
    <issue>P02014</issue>
    <volume>7</volume>
    <type>article</type>
    <publisherName>Inst. of Physics Publ.</publisherName>
    <publisherPlace>London</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Detection system for microimaging with neutrons</title>
    <abstract language="eng">A new high-resolution detector setup for neutron imaging has been developed based on infinity-corrected optics with high light collection, combined with customized mounting hardware. The system can easily be installed, handled and fitted to any existing facility, avoiding the necessity of complex optical systems or further improved electronics (CCD). This is the first time optical magnification higher than 1:1 has been used with scintillator-based neutron detectors, as well as the first implementation of infinity corrected optics for neutron imaging, achieving the smallest yet reported effective pixel size of 3.375 µm. A novel transparent crystal scintillator (GGG crystal) has been implemented with neutrons for the first time to overcome limitations of traditional powder scintillators (Li6/ZnS, Gadox). The standardized procedure for resolution measurements with the Modulation Transfer Function (MTF) is summarized to facilitate comparison between instruments and facilities. Using this new detector setup, a resolution of 14.8 µm with a field of view of 6 mm × 6 mm has been achieved while maintaining reasonable count times. These advances open a wide range of new possible research applications and allow the potential for additional future developments.</abstract>
    <parentTitle language="eng">Journal of Instrumentation</parentTitle>
    <identifier type="old">29200</identifier>
    <identifier type="doi">10.1088/1748-0221/7/02/P02014</identifier>
    <identifier type="issn">1748-0221</identifier>
    <enrichment key="date_peer_review">10.09.2012</enrichment>
    <author>S. H. Williams</author>
    <author>A. Hilger</author>
    <author>N. Kardjilov</author>
    <author>I. Manke</author>
    <author>M. Strobl</author>
    <author>P.A. Douissard</author>
    <author>T. Martin</author>
    <author>Heinrich Riesemeier</author>
    <author>J. Banhart</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Instrumentation for neutron sources</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Neutron radiography</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Neutron detectors (cold, thermal, fast neutrons)</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>35251</id>
    <completedYear/>
    <publishedYear>2016</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>61</pageFirst>
    <pageLast>67</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume>147</volume>
    <type>article</type>
    <publisherName>Elsevier B.V.</publisherName>
    <publisherPlace>Amsterdam [u.a.]</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">In operando XAFS experiments on flexible electrochromic devices based on Fe(II)-metallo-supramolecular polyelectrolytes and vanadium oxides</title>
    <abstract language="eng">Flexible electrochromic devices (ECDs) based on Fe(II)-metallo-supramolecular polyelectrolytes (Fe-MEPE) and vanadium oxide are studied in operando by means of x-ray absorption fine structure (XAFS) spectroscopy. The ECDs are blue-purple in the colored state at 0.0 V and become light yellow when a voltage of 1.6 V is applied. The XAFS studies at the K-edge of Fe(II) reveals that the absorption edge is shifted toward higher energies by 1.8 eV in the transparent state. Comparison of two different ECDs and different charge cycles demonstrates the reversibility and repeatability of the process. We attribute the shift to a charge transfer and a change of oxidation state of the ions from Fe2+ to Fe3+. The transition is not accompanied by a noticeable structural change of the octahedral coordination geometry as confirmed by analysis of the extended x-ray absorption fine structure (EXAFS) data. (C) 2015 Elsevier B.V. All rights reserved.</abstract>
    <parentTitle language="eng">Solar energy materials &amp; solar cells</parentTitle>
    <identifier type="doi">10.1016/j.solmat.2015.10.015</identifier>
    <identifier type="issn">0927-0248</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <enrichment key="date_peer_review">18.01.2016</enrichment>
    <author>M. Schott</author>
    <author>Wojciech Szczerba</author>
    <author>U. Posset</author>
    <author>A.S. Vuk</author>
    <author>M. Beck</author>
    <author>Heinrich Riesemeier</author>
    <author>Andreas Thünemann</author>
    <author>D. G. Kurth</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Metallo-supramolecular polyelectrolytes</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Vanadium oxide</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Electrochromism</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Electrochromic device</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Cyclic voltammetry</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>XAFS</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>26282</id>
    <completedYear/>
    <publishedYear>2012</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>689</pageFirst>
    <pageLast>692</pageLast>
    <pageNumber/>
    <edition/>
    <issue>7</issue>
    <volume>7</volume>
    <type>article</type>
    <publisherName>IET</publisherName>
    <publisherPlace>London</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Combined synchrotron X-ray radiography and tomography study of water transport in gas diffusion layers</title>
    <abstract language="eng">Synchrotron X-ray radiography and tomography investigations of a custom-made polymer electrolyte membrane fuel cell optimised for visualisation purposes are presented. The 3D water distribution and transport pathways in the porous carbon fibre gas diffusion layers (GDLs) were investigated. The authors found that water is not only moving from the GDL into the channel, but can also take the opposite way, that is, from the channel into free pore space of the GDL. Such movement of water into the opposite direction has been subject of speculations but has so far not yet been reported and might bring new insights into the general water transport behaviour, which might give new aspects to the general description of water transport processes and influence modelling assumptions to describe the process taking place in the GDL.</abstract>
    <parentTitle language="eng">Micro &amp; nano letters</parentTitle>
    <identifier type="old">29034</identifier>
    <identifier type="doi">10.1049/mnl.2012.0410</identifier>
    <identifier type="issn">1750-0443</identifier>
    <enrichment key="date_peer_review">10.08.2012</enrichment>
    <author>Henning Markötter</author>
    <author>I. Manke</author>
    <author>J. Haußmann</author>
    <author>Tobias Arlt</author>
    <author>M. Klages</author>
    <author>P. Krüger</author>
    <author>C. Hartnig</author>
    <author>J. Scholta</author>
    <author>Bernd R. Müller</author>
    <author>Heinrich Riesemeier</author>
    <author>J. Banhart</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Synchrotron radiography</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Synchrotron tomography</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Gas diffusion layers</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Water transport</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>23765</id>
    <completedYear/>
    <publishedYear>2011</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1493</pageFirst>
    <pageLast>1498</pageLast>
    <pageNumber/>
    <edition/>
    <issue>13</issue>
    <volume>269</volume>
    <type>article</type>
    <publisherName>Elsevier</publisherName>
    <publisherPlace>Amsterdam</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">X-ray scattering in X-ray fluorescence spectra with X-ray monochromatic, polarised excitation - modelling, experiment, and Monte-Carlo simulation</title>
    <abstract language="eng">A systematic series of measurements has been carried out with monochromatic X-ray excitation with synchrotron radiation in order to check a physical model on X-ray scattering. The model has recently been successfully tested for the case of polychromatic, unpolarised excitation emitted by an X-ray tube. Our main purpose is the modelling of a physical background in X-ray fluorescence spectra, so that improved quantitative results can be achieved especially for strongly scattering specimens. The model includes single Rayleigh and Compton scattering in the specimen, the effect of bound electrons, the challenging Compton broadening and the polarisation degree. Representative specimens, measurement geometries and excitation energies have been selected with synchrotron monochromatic light at BAMline/BESSY II. Monte-Carlo simulations have been also carried out in order to evaluate the quality of the results achieved with the model.</abstract>
    <parentTitle language="eng">Nuclear instruments and methods in physics research B</parentTitle>
    <identifier type="old">26366</identifier>
    <identifier type="doi">10.1016/j.nimb.2011.04.009</identifier>
    <identifier type="issn">0168-583X</identifier>
    <identifier type="issn">1872-9584</identifier>
    <enrichment key="date_peer_review">06.06.2011</enrichment>
    <author>Vasile-Dan Hodoroaba</author>
    <author>Martin Radtke</author>
    <author>Uwe Reinholz</author>
    <author>Heinrich Riesemeier</author>
    <author>L. Vincze</author>
    <author>Dirk Reuter</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>X-ray scattering</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Monochromatic excitation</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Polarisation</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Modelling</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Monte-Carlo simulation</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>43356</id>
    <completedYear/>
    <publishedYear>2017</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>101</pageFirst>
    <pageLast>104</pageLast>
    <pageNumber/>
    <edition/>
    <issue>3</issue>
    <volume>47</volume>
    <type>article</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation>Korean Society of Microscopy</creatingCorporation>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Investigation of water transport in newly developed micro porous layers for polymer electrolyte membrane fuel cells</title>
    <abstract language="eng">In this investigation, synchrotron X-ray imaging was used to investigate the water distribution inside newly developed gas diffusion media in polymer electrolyte membrane fuel cells. In-situ radiography was used to reveal the relationship between the structure of the microporous layer (MPL) and the water flow in a newly developed MPL equipped with randomly arranged holes. A strong influence of these holes on the overall water transport was found. This contribution provides a brief overview to some of our recent activities on this research field.</abstract>
    <parentTitle language="eng">Applied Microscopy</parentTitle>
    <identifier type="doi">10.9729/AM.2017.47.3.101</identifier>
    <identifier type="issn">2287-4445</identifier>
    <identifier type="issn">2287-5123</identifier>
    <author>S. S. Alrwashdeh</author>
    <author>Henning Markötter</author>
    <author>J. Haußmann</author>
    <author>A. Hilger</author>
    <author>M. Klages</author>
    <author>Bernd R. Müller</author>
    <author>Andreas Kupsch</author>
    <author>Heinrich Riesemeier</author>
    <author>J. Scholta</author>
    <author>I. Manke</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Polymer electrolyte membrane fuel cell</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Microporous layer</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Water distribution</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Radiography</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Synchrotron X-ray imaging</value>
    </subject>
    <collection role="ddc" number="621">Angewandte Physik</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>49359</id>
    <completedYear/>
    <publishedYear>2019</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>2083</pageFirst>
    <pageLast>2093</pageLast>
    <pageNumber/>
    <edition/>
    <issue>10</issue>
    <volume>34</volume>
    <type>article</type>
    <publisherName>Royal Society of Chemistry</publisherName>
    <publisherPlace>Cambridge, United Kingdom</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Three-dimensional X-ray fluorescence imaging modes for biological specimens using a full-field energy dispersive CCD camera</title>
    <abstract language="eng">Besides conventional scanning X-ray fluorescence imaging at synchrotron sources, full-field X-ray fluorescence (FF-XRF) imaging techniques that do not implicitly require spatial scanning of the sample have become available. FF-XRF has become achievable thanks to the development of a new type of energy dispersive CCD-based 2D detector, also referred to as a 'color X-ray camera (CXC)' or 'SLcam'. We report on different imaging schemes for biological samples using FF-XRF imaging: (a) 2D 'zoom' imaging with pinhole optics using the 'camera obscura' principle; (b) 2D 'fixed magnification' imaging using magnifying polycapillary optics; and (c) 3D-FF-XRF imaging using an X-ray sheet beam or computed tomography (CT). The different FF-XRF imaging modes are illustrated using the crustacean Daphnia magna, a model organism for investigating the effects of metals on organism/ecosystem health, and foraminifera, a class of amoeboid protist. Detailed analytical characterization of the set-up is performed through analyzing various reference materials in order to determine limits of detection (LODs) and sensitivities. Experiments were performed using the BAMline at the BESSY synchrotron (Berlin, Germany) and using the P06 Hard X-ray Microprobe at the PETRAIII synchrotron (Hamburg, Germany).</abstract>
    <parentTitle language="eng">Journal of analytical atomic spectrometry</parentTitle>
    <identifier type="doi">10.1039/c9ja00198k</identifier>
    <enrichment key="date_peer_review">24.10.2019</enrichment>
    <author>B. De Samber</author>
    <author>Oliver Scharf</author>
    <author>Günter Buzanich</author>
    <author>J. Garrevoet</author>
    <author>P. Tack</author>
    <author>Martin Radtke</author>
    <author>Heinrich Riesemeier</author>
    <author>Uwe Reinholz</author>
    <author>R. Evens</author>
    <author>K. De Schamphelaere</author>
    <author>G. Falkenberg</author>
    <author>C. Janssen</author>
    <author>L. Vincze</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>CXC</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>BAMline</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Maia detector</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Synchrotron</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>30545</id>
    <completedYear/>
    <publishedYear>2013</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>195</pageFirst>
    <pageLast>202</pageLast>
    <pageNumber/>
    <edition/>
    <issue>29</issue>
    <volume>45</volume>
    <type>article</type>
    <publisherName/>
    <publisherPlace>Pennington, NJ, USA</publisherPlace>
    <creatingCorporation>Electrochemical Society</creatingCorporation>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Investigation of fuel cell materials and liquid water transport by means of synchrotron imaging</title>
    <abstract language="eng">Synchrotron imaging allows addressing various important issues in fuel cell research, for example water distribution and transport. The water distribution in polymer electrolyte membrane fuel cells (PEMFCs) was observed quasi in-situ directly after operation by means of synchrotron tomography. The 3D data set was compared with the tomogram of a dry cell in order to separate the water distribution from cell materials. Engineered transport pathways realized by perforating holes through the gas diffusion layer (GDL) are a recent approach to optimize water transport and cell performance. For some parameter sets a cell performance increase and an improvement of stabilization have already been proven. We present high resolution investigations of the water distribution in perforated GDLs of operating PEMFCs by means of in-situ synchrotron radiography. The surrounding areas of the holes exhibited a distinct hydrophilic character.</abstract>
    <parentTitle language="eng">ECS transactions</parentTitle>
    <identifier type="old">33520</identifier>
    <identifier type="doi">10.1149/04529.0195ecst</identifier>
    <identifier type="issn">1938-6737</identifier>
    <identifier type="issn">1938-5862</identifier>
    <author>Henning Markötter</author>
    <author>J. Haußmann</author>
    <author>R. Alink</author>
    <author>K. Dittmann</author>
    <author>C. Tötzke</author>
    <author>P. Krüger</author>
    <author>M. Klages</author>
    <author>Tobias Arlt</author>
    <author>Bernd R. Müller</author>
    <author>Heinrich Riesemeier</author>
    <author>J. Scholta</author>
    <author>D. Gerteisen</author>
    <author>I. Manke</author>
    <author>J. Banhart</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Gas-diffusion layers</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Resolution neutron-radiography</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>X-ray radiography</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Visualization</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>PEMFC</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>25244</id>
    <completedYear/>
    <publishedYear>2011</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1001</pageFirst>
    <pageLast>1004</pageLast>
    <pageNumber/>
    <edition/>
    <issue>9</issue>
    <volume>13</volume>
    <type>article</type>
    <publisherName>Elsevier B.V.</publisherName>
    <publisherPlace>Amsterdam</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Investigation of 3D water transport paths in gas diffusion layers by combined in-situ synchrotron X-ray radiography and tomography</title>
    <abstract language="eng">The three-dimensional water distribution and water transport paths in the gas diffusion layer (GDL) and the adjacent micro-porous layer (MPL) of a polymer electrolyte membrane fuel cell (PEMFC) were analyzed during cell operation. The technique of quasi in-situ X-ray tomography was used for a 3D visualization of the water distribution and the structure of the GDL at different operating conditions. Based on findings from in-situ radiographic measurements water transport paths were detected and subsequently examined by tomography. The combination of these 2D and 3D techniques allows for a fully three-dimensionally resolved visualization of transport paths through the GDL.</abstract>
    <parentTitle language="eng">Electrochemistry communications</parentTitle>
    <identifier type="old">27952</identifier>
    <identifier type="doi">10.1016/j.elecom.2011.06.023</identifier>
    <identifier type="issn">1388-2481</identifier>
    <enrichment key="date_peer_review">05.01.2012</enrichment>
    <author>Henning Markötter</author>
    <author>I. Manke</author>
    <author>P. Krüger</author>
    <author>Tobias Arlt</author>
    <author>J. Huassmann</author>
    <author>M. Klages</author>
    <author>Heinrich Riesemeier</author>
    <author>C. Hartnig</author>
    <author>J. Scholta</author>
    <author>J. Banhart</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Polymer electrolyte membrane fuel cell (PEMFC)</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Radiography</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Tomography</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Synchrotron X-ray imaging</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Gas diffusion layer (GDL)</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Water transport paths</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>25243</id>
    <completedYear/>
    <publishedYear>2011</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>826</pageFirst>
    <pageLast>829</pageLast>
    <pageNumber/>
    <edition/>
    <issue>8</issue>
    <volume>13</volume>
    <type>article</type>
    <publisherName>Elsevier B.V.</publisherName>
    <publisherPlace>Amsterdam</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Investigation of the three-dimensional ruthenium distribution in fresh and aged membrane electrode assemblies with synchrotron X-ray absorption edge tomography</title>
    <abstract language="eng">Synchrotron X-ray absorption edge imaging was used to investigate the ruthenium distribution in both fresh and aged Pt/Ru-based membrane electrode assemblies (MEA) of direct methanol fuel cells. MEAs aged in different ways were analyzed: artificially aged by MeOH depletion and aged for 1700 h in an operating fuel cell stack. An element sensitive tomographic technique – differential X-ray absorption edge tomography – was applied allowing for a 3D-visualization of the ruthenium distribution within the MEA. We found a markedly changed Ru distribution after aging which is correlated to the GDL structure, the flow field geometry, and CO2 transport in the methanol solution.</abstract>
    <parentTitle language="eng">Electrochemistry communications</parentTitle>
    <identifier type="old">27951</identifier>
    <identifier type="doi">10.1016/j.elecom.2011.05.013</identifier>
    <identifier type="issn">1388-2481</identifier>
    <enrichment key="date_peer_review">05.01.2012</enrichment>
    <author>Tobias Arlt</author>
    <author>I. Manke</author>
    <author>K. Wippermann</author>
    <author>C. Tötzke</author>
    <author>Henning Markötter</author>
    <author>Heinrich Riesemeier</author>
    <author>J. Mergel</author>
    <author>J. Banhart</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Edge tomography</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Ruthenium distribution</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Direct methanol fuel cells</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Synchrotron X-ray</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>PtRu corrosion</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>23046</id>
    <completedYear/>
    <publishedYear>2010</publishedYear>
    <thesisYearAccepted/>
    <language>deu</language>
    <pageFirst>698</pageFirst>
    <pageLast>704</pageLast>
    <pageNumber/>
    <edition/>
    <issue>10</issue>
    <volume>52</volume>
    <type>article</type>
    <publisherName>Hanser</publisherName>
    <publisherPlace>München</publisherPlace>
    <creatingCorporation>Bundesanstalt für Materialforschung und -prüfung</creatingCorporation>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="deu">Hochauflösende Synchrotron-Radiografie</title>
    <parentTitle language="deu">MP materials testing</parentTitle>
    <identifier type="old">25613</identifier>
    <identifier type="issn">0025-5300</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <enrichment key="date_peer_review">27.01.2011</enrichment>
    <author>Henning Markötter</author>
    <author>I. Manke</author>
    <author>C. Hartnig</author>
    <author>P. Krüger</author>
    <author>K. Wippermann</author>
    <author>Tobias Arlt</author>
    <author>G. Choinka</author>
    <author>Heinrich Riesemeier</author>
    <author>J. Banhart</author>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>PEM Fuel-cells</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Local current distribution</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Neutron imaging technique</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Water transport</value>
    </subject>
    <collection role="literaturgattung" number="">Eigenverlag BAM</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
  <doc>
    <id>30548</id>
    <completedYear/>
    <publishedYear>2013</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>22</pageFirst>
    <pageLast>24</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume>34</volume>
    <type>article</type>
    <publisherName>Elsevier</publisherName>
    <publisherPlace>Amsterdam</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Influence of cracks in the microporous layer on the water distribution in a PEM fuel cell investigated by synchrotron radiography</title>
    <abstract language="eng">Water evolution in the gas diffusion layer of a polymer electrolyte membrane fuel cell was visualized in situ by means of synchrotron X-ray radiography. Cracks in the microporous layer were identified as start points of efficient liquid water transfer paths through the gas diffusion layer. Quantitative analysis of the water flow rate through those arbitrarily distributed cracks into the gas channel revealed that they have a strong influence on the overall liquid water transport. This could find entry into future material design and simulation.</abstract>
    <parentTitle language="eng">Electrochemistry communications</parentTitle>
    <identifier type="old">33523</identifier>
    <identifier type="doi">10.1016/j.elecom.2013.04.006</identifier>
    <identifier type="issn">1388-2481</identifier>
    <enrichment key="date_peer_review">14.04.2014</enrichment>
    <author>Henning Markötter</author>
    <author>J. Haußmann</author>
    <author>R. Alink</author>
    <author>C. Tötzke</author>
    <author>Tobias Arlt</author>
    <author>M. Klages</author>
    <author>Heinrich Riesemeier</author>
    <author>J. Scholta</author>
    <author>D. Gerteisen</author>
    <author>J. Banhart</author>
    <author>I. Manke</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Polymer electrolyte membrane fuel cell (PEMFC)</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Radiography</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Synchrotron X-ray imaging</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Microporous layer (MPL)</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Water transport</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Liquid water flow rate</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>30224</id>
    <completedYear/>
    <publishedYear>2013</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1650</pageFirst>
    <pageLast>1656</pageLast>
    <pageNumber/>
    <edition/>
    <issue>3</issue>
    <volume>85</volume>
    <type>article</type>
    <publisherName>American Chemical Society</publisherName>
    <publisherPlace>Washington, DC</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Beyond the Great Wall: Gold of the silk roads and the first empire of the Steppes</title>
    <abstract language="eng">Fingerprinting ancient gold work requires the use of nondestructive techniques with high spatial resolution (down to 25 µm) and good detection limits (micrograms per gram level). In this work experimental setups and protocols for synchrotron radiation induced X-ray fluorescence (SRXRF) at the BAMline of the Berlin electron storage ring company for synchrotron radiation (BESSY) in Berlin for the measurement of characteristic trace elements of gold are compared considering the difficulties, shown in previous works, connected to the quantification of Pt. The best experimental conditions and calculation methods were achieved by using an excitation energy of 11.58 keV, a silicon drift chamber detector (SDD) detector, and pure element reference standards. A detection limit of 3 µg/g has been reached. This newly developed method was successfully applied to provenancing the Xiongnu gold from the Gol Mod necropolis, excavated under the aegis of the United Nations Educational, Scientific and Cultural Organization (UNESCO). The composition of the base alloys and the presence of Pt and Sn showed that, contrary to what is expected, the gold foils from the first powerful empire of the steppes along the Great Wall were produced with alluvial gold from local placer deposits located in Zaamar, Boroo, and in the Selenga River.</abstract>
    <parentTitle language="eng">Analytical chemistry</parentTitle>
    <identifier type="old">33184</identifier>
    <identifier type="doi">10.1021/ac3025416</identifier>
    <identifier type="issn">0003-2700</identifier>
    <identifier type="issn">1520-6882</identifier>
    <enrichment key="date_peer_review">20.02.2014</enrichment>
    <author>Martin Radtke</author>
    <author>I. Reiche</author>
    <author>Uwe Reinholz</author>
    <author>Heinrich Riesemeier</author>
    <author>M.F. Guerra</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Synchrotron radiation</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>X-ray fluorescence</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Limit of detection</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Platinum</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Silicon drift detector</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>SR-microXRF</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Elemental imaging</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Gold</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>26791</id>
    <completedYear/>
    <publishedYear>2012</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1875</pageFirst>
    <pageLast>1881</pageLast>
    <pageNumber/>
    <edition/>
    <issue>11</issue>
    <volume>27</volume>
    <type>article</type>
    <publisherName>Royal Society of Chemistry</publisherName>
    <publisherPlace>London</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Impurities in multicrystalline silicon wafers for solar cells detected by synchrotron micro-beam X-ray fluorescence analysis</title>
    <abstract language="eng">We report on the trace analysis of copper and iron impurities in multicrystalline silicon wafers with the microbeam X-ray fluorescence (µ-XRF) technique. The efficiency of solar cells, which are based on multicrystalline silicon wafers, is strongly influenced by minor contamination with metals such as copper and iron. Application of compound refractive lenses (CRLs) in µ-XRF allows versatile two-dimensional mapping of relevant contaminations and localization of their sites of deposition. In this context, the measured bulk average limit of detection (LOD) was one picogram of iron and copper per gram of silicon. We suggest that µ-XRF is a valuable tool for non-destructive spatial (3D) quantification of metal impurities in a wide range of materials and devices whose functioning could be critically affected by impurities.</abstract>
    <parentTitle language="eng">Journal of analytical atomic spectrometry</parentTitle>
    <identifier type="old">29573</identifier>
    <identifier type="doi">10.1039/c2ja30188a</identifier>
    <identifier type="issn">0267-9477</identifier>
    <identifier type="issn">1364-5544</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <enrichment key="date_peer_review">25.10.2012</enrichment>
    <author>Günter Buzanich</author>
    <author>Martin Radtke</author>
    <author>Uwe Reinholz</author>
    <author>Heinrich Riesemeier</author>
    <author>Andreas Thünemann</author>
    <author>C. Streli</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>X-ray micro beam</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Compound refractive lens</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Solar cell</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Silicon impurities</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
  <doc>
    <id>20580</id>
    <completedYear/>
    <publishedYear>2007</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>283</pageFirst>
    <pageLast>288</pageLast>
    <pageNumber/>
    <edition/>
    <issue>4-5</issue>
    <volume>366</volume>
    <type>article</type>
    <publisherName>North-Holland Publ. Co.</publisherName>
    <publisherPlace>Amsterdam</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Propagation of synchrotron radiation through nanocapillary structures</title>
    <abstract language="eng">The propagation of synchrotron radiation through nanocapillary structures with channel sizes of 200 nm and periods in the micrometer size has been studied experimentally. It was shown that the propagation through individual capillary channels has a mode formation character. Furthermore it was shown that during the propagation through capillary channels the coherence of synchrotron radiation is partially conserved. Interference of beams propagating through different capillary channels is observed which leads to a periodically modulated distribution of the radiation intensity in a plane far from the exit of the structure. These investigations are of high relevance for the understanding of X-ray transmission through nanocapillaries and the appearance of wave properties at this size scale.</abstract>
    <parentTitle language="eng">Physics letters A</parentTitle>
    <identifier type="old">22888</identifier>
    <identifier type="doi">10.1016/j.physleta.2007.01.092</identifier>
    <identifier type="issn">0031-9163</identifier>
    <identifier type="issn">0375-9601</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <author>A. Bjeoumikhov</author>
    <author>Zemfira Bjeoumikhova</author>
    <author>Heinrich Riesemeier</author>
    <author>Martin Radtke</author>
    <author>R. Wedell</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Polycapillary structure</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Nanocapillary</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>X-ray optics</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Wave properties</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Synchrotron radiation</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>X-ray diffraction</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
  <doc>
    <id>38367</id>
    <completedYear/>
    <publishedYear>2016</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>57</pageFirst>
    <pageLast>67</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume>339</volume>
    <type>article</type>
    <publisherName>Elsevier</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">A combined in-situ XAS–DRIFTS study unraveling adsorbate induced changes on Pt nanoparticle structure</title>
    <abstract language="eng">The adsorption behavior of Platinum nanoparticles was studied for the as-received catalyst (under inert gas), under hydrogen and CO atmosphere using our newly designed in-situ cell. X-ray Absorption Spectroscopy (XAS) and Diffuse Reflectance Infrared Fourier Transform Spectroscopy (DRIFTS) experiments were performed simultaneously with high data quality. Structural information and the type of adsorbate could be revealed via Extended X-ray Absorption Fine Structure (EXAFS) analysis, Δμ X-ray Absorption Near Edge Structure analysis (Δμ XANES) and in-situ DRIFTS. The as-received catalyst showed sub-surface oxygen and O(n-fold). Under CO atmosphere only CO(atop) was found. Reversible adsorbate induced changes of the Pt nanoparticle structure were derived from changes in the Pt-Pt coordination number and the corresponding bond distance. Under reducing conditions (H2, CO) a significant increase in both values occurred. Temperature dependent desorption of CO revealed a gradual shift from Pt-CO to Pt-O. Reoxidation was clearly assigned to strong metal support interaction from the SiO2 support.</abstract>
    <parentTitle language="eng">Journal od Catalysis</parentTitle>
    <identifier type="doi">10.1016/j.jcat.2016.03.034</identifier>
    <identifier type="issn">0021-9517</identifier>
    <author>C. Brieger</author>
    <author>J. Melke</author>
    <author>N. van der Bosch</author>
    <author>Uwe Reinholz</author>
    <author>Heinrich Riesemeier</author>
    <author>Ana de Oliveira Guilherme Buzanich</author>
    <author>M. Krishna Kayarkatte</author>
    <author>I. Derr</author>
    <author>A. Schökel</author>
    <author>C. Roth</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>X-ray absorption spectroscopy</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>DRIFTS</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>XANES</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>CO adsoprtion</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Platinum</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>String metal support interaction</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Silica support</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Adsorbates</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Infrared spectroscopy</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="ddc" number="620">Ingenieurwissenschaften und zugeordnete Tätigkeiten</collection>
    <collection role="literaturgattung" number="">Eigenverlag BAM</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>17554</id>
    <completedYear/>
    <publishedYear>2008</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>2165</pageFirst>
    <pageLast>2168</pageLast>
    <pageNumber/>
    <edition/>
    <issue>10</issue>
    <volume>266</volume>
    <type>article</type>
    <publisherName>Elsevier</publisherName>
    <publisherPlace>Amsterdam</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Measurements with compound refractive lenses at the "BAMline"</title>
    <abstract language="eng">A set of compound refractive lenses (CRLs), mounted on a silicon wafer, was obtained from the Institut für Mikrostrukturtechnik Karlsruhe. The CRLs were characterized at the BAMline at the synchrotron BESSYII in Berlin. It could be demonstrated that beam diameters below 1 µm can be obtained. The beam size accepted by the lenses is (140 × 140) µm2, thus the intensity gain in the micrometer spot, including absorption, is about 15,000. It is possible to switch between different beam energies within a few minutes. First results of scans and the application of the lenses for MicroXANES (X-ray absorption near-edge structure) measurements are presented in this paper. Also, the possibility of MicroEXAFS (extended X-ray absorption fine structure) measurements is discussed.</abstract>
    <parentTitle language="eng">Nuclear instruments and methods in physics research B</parentTitle>
    <identifier type="old">19621</identifier>
    <identifier type="doi">10.1016/j.nimb.2008.02.057</identifier>
    <identifier type="issn">0168-583X</identifier>
    <identifier type="issn">1872-9584</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <enrichment key="date_peer_review">05.06.2008</enrichment>
    <author>Erik Strub</author>
    <author>Martin Radtke</author>
    <author>Uwe Reinholz</author>
    <author>Heinrich Riesemeier</author>
    <author>E. Reznikova</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>X-ray optics</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>XANES</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>EXAFS</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>XAS</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>XRF</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Speciation</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
  <doc>
    <id>25290</id>
    <completedYear/>
    <publishedYear>2011</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>9799</pageFirst>
    <pageLast>9805</pageLast>
    <pageNumber/>
    <edition/>
    <issue>22</issue>
    <volume>45</volume>
    <type>article</type>
    <publisherName>ACS Publ.</publisherName>
    <publisherPlace>Washington, DC</publisherPlace>
    <creatingCorporation>American Chemical Society</creatingCorporation>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Cr(VI)/Cr(III) and As(V)/As(III) ratio assessments in Jordanian spent oil shale produced by aerobic combustion and anaerobic pyrolysis</title>
    <abstract language="eng">With the increase in the awareness of the public in the environmental impact of oil shale utilization, it is of interest to reveal the mobility of potentially toxic trace elements in spent oil shale. Therefore, the Cr and As oxidation state in a representative Jordanian oil shale sample from the El-Lajjoun area were investigated upon different lab-scale furnace treatments. The anaerobic pyrolysis was performed in a retort flushed by nitrogen gas at temperatures in between 600 and 800 °C (pyrolytic oil shale, POS). The aerobic combustion was simply performed in porcelain cups heated in a muffle furnace for 4 h at temperatures in between 700 and 1000 °C (burned oil shale, BOS). The high loss-on-ignition in the BOS samples of up to 370 g kg–1 results from both calcium carbonate and organic carbon degradation. The LOI leads to enrichment in the Cr concentrations from 480 mg kg–1 in the original oil shale up to 675 mg kg–1 in the ≥850 °C BOS samples. Arsenic concentrations were not much elevated beyond that in the average shale standard (13 mg kg–1). Synchrotron-based X-ray absorption near-edge structure (XANES) analysis revealed that within the original oil shale the oxidation states of Cr and As were lower than after its aerobic combustion. Cr(VI) increased from 0% in the untreated or pyrolyzed oil shale up to 60% in the BOS ash combusted at 850 °C, while As(V) increased from 64% in the original oil shale up to 100% in the BOS ash at 700 °C. No Cr was released from original oil shale and POS products by the European compliance leaching test CEN/TC 292 EN 12457-1 (1:2 solid/water ratio, 24 h shaking), whereas leachates from BOS samples showed Cr release in the order of one mmol L–1. The leachable Cr content is dominated by chromate as revealed by catalytic adsorptive stripping voltammetry (CAdSV) which could cause harmful contamination of surface and groundwater in the semiarid environment of Jordan.</abstract>
    <parentTitle language="eng">Environmental science &amp; technology</parentTitle>
    <identifier type="old">27999</identifier>
    <identifier type="doi">10.1021/es200695e</identifier>
    <identifier type="issn">0013-936X</identifier>
    <identifier type="issn">1520-5851</identifier>
    <enrichment key="date_peer_review">09.01.2012</enrichment>
    <author>T. El-Hasan</author>
    <author>Wojciech Szczerba</author>
    <author>Günter Buzanich</author>
    <author>Martin Radtke</author>
    <author>Heinrich Riesemeier</author>
    <author>M. Kersten</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Trace-elements</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Fly-ash</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Speciation</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Chromium</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Sediments</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Behavior</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Metals</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Xanes</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Cr</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Transformation</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>23193</id>
    <completedYear/>
    <publishedYear>2011</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1088</pageFirst>
    <pageLast>1089</pageLast>
    <pageNumber/>
    <edition/>
    <issue>5</issue>
    <volume>26</volume>
    <type>article</type>
    <publisherName>Royal Society of Chemistry</publisherName>
    <publisherPlace>London</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">SRXRF-measurements at non-planar objects: automatic determination of the angle of incidence of the exciting X-ray</title>
    <abstract language="eng">For quantitative SRXRF measurements the angle of incidence of the incoming X-ray beam is an important factor. When the sample is focused by a long-range-microscope, the determination of the angle can be automatized using a simple algorithm. This was developed to improve the orientation of especially round or ornate samples. As a side effect the three dimensional surface can be reconstructed, too.</abstract>
    <parentTitle language="eng">Journal of analytical atomic spectrometry</parentTitle>
    <identifier type="old">25764</identifier>
    <identifier type="doi">10.1039/c0ja00237b</identifier>
    <identifier type="issn">0267-9477</identifier>
    <identifier type="issn">1364-5544</identifier>
    <enrichment key="date_peer_review">08.02.2011</enrichment>
    <author>Christian Grunewald</author>
    <author>Martin Radtke</author>
    <author>Uwe Reinholz</author>
    <author>Günter Buzanich</author>
    <author>Heinrich Riesemeier</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>X-ray fluorescence</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Synchrotron radiation</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Long-range microscope</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>35777</id>
    <completedYear/>
    <publishedYear>2016</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>56</pageFirst>
    <pageLast>61</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume>125</volume>
    <type>article</type>
    <publisherName>Elsevier Science</publisherName>
    <publisherPlace>Amsterdam</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Double Dispersive X-Ray Fluorescence (D2XRF) based on an Energy Dispersive pnCCD detector for the detection of platinum in gold</title>
    <abstract language="eng">With the aim of improving limits of detection (LOD) of trace elements in a matrix with adjacent fluorescence energies, a simple double dispersive X-ray fluorescence detection system (D2XRF) was constructed to operate at the beamlines BAMline and the mySpot @ BESSY II. This system is based on the combination of a crystal analyzer with an energy resolving single photon counting pnCCD. Without further collimators, the efficient suppression of the background by the pnCCD and the good energy resolution of the crystal results in improved LOD. In first order reflections, an energy resolution of 13 eV for Cu Kα was reached, and an energy range of 1 keV was covered in one shot.&#13;
This new system was applied to the detection of platinum (Pt) in gold leaves with a LOD of 0.9 mg/kg, which is the lowest attained by totally non-destructive methods nowadays. The presence of Pt in gilded objects from Abydos and Byzantine mosaics provides vital information, as it indicates the alluvial origin of the gold for these examples.</abstract>
    <parentTitle language="eng">Microchemical Journal</parentTitle>
    <identifier type="doi">10.1016/j.microc.2015.10.039</identifier>
    <enrichment key="date_peer_review">20.04.2016</enrichment>
    <author>Martin Radtke</author>
    <author>Günter Buzanich</author>
    <author>Ana de Oliveira Guilherme Buzanich</author>
    <author>Uwe Reinholz</author>
    <author>Heinrich Riesemeier</author>
    <author>O. Scharf</author>
    <author>Philipp Scholz</author>
    <author>M.F. Guerra</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Platinum Wavelength dispersive D2XRF</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Gold Synchrotron XRF</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>28300</id>
    <completedYear/>
    <publishedYear>2013</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>45</pageFirst>
    <pageLast>55</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume>162</volume>
    <type>article</type>
    <publisherName>Soc.</publisherName>
    <publisherPlace>Cambridge [u.a.]</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">The structure of AuPd nanoalloys anchored on spherical polyelectrolyte brushes determined by x-ray absorption spectroscopy</title>
    <abstract language="eng">Well-defined and facetted bimetallic gold–palladium nanoalloys have been synthesized and anchored in spherical polyelectrolyte brushes (SPB) as composite particles (AuPd@SPB). These particles are better catalysts in aqueous phase than the pure metals. The atomistic arrangement of these nanoalloys has been analysed by extended X-ray absorption fine structure (EXAFS) spectroscopy at the Au–L3 and the Pd–K absorption edge. The samples with high amounts of gold appear as almost statistically mixed random alloys. Alloy compositions with less gold show slight enrichment of Pd at the surface of the particle. In addition, signals of non-metallic palladium appear at the Pd–K edge which indicate the presence of the Pd2+ species in addition to metallic palladium. The relation of these structural features to the catalytic activity is discussed.</abstract>
    <parentTitle language="eng">Faraday discussions</parentTitle>
    <identifier type="old">31148</identifier>
    <identifier type="doi">10.1039/c3fd20132e</identifier>
    <identifier type="issn">1359-6640</identifier>
    <identifier type="issn">1364-5498</identifier>
    <enrichment key="date_peer_review">06.05.2013</enrichment>
    <author>J. Kaiser</author>
    <author>Wojciech Szczerba</author>
    <author>Heinrich Riesemeier</author>
    <author>Uwe Reinholz</author>
    <author>Martin Radtke</author>
    <author>M. Albrecht</author>
    <author>Y. Lu</author>
    <author>M. Ballauff</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>EXAFS</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Nanoalloys</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Gold</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Palladium</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>K-edge</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>L3-edge</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>HR-TEM</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Synchrotron radiation</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>BAMline</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>4575</id>
    <completedYear/>
    <publishedYear>2004</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1657</pageFirst>
    <pageLast>1662</pageLast>
    <pageNumber/>
    <edition/>
    <issue>10-11</issue>
    <volume>59</volume>
    <type>article</type>
    <publisherName>Elsevier</publisherName>
    <publisherPlace>Amsterdam</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Spatially resolved synchrotron-induced X-ray fluorescence analyses of metal point drawings and their mysterious inscriptions</title>
    <abstract language="eng">Synchrotron-induced X-ray fluorescence (Sy-XRF) analysis was used to study the chemical composition of precious Renaissance silverpoint drawings. Drawings by famous artists such as Albrecht Dürer (14711528) and Jan van Eyck (approximately 13951441) must be investigated non-destructively. Moreover, extremely sensitive synchrotron- or accelerator-based techniques are needed since only small quantities of silver are deposited on the paper. New criteria for attributing these works to a particular artist could be established based on the analysis of the chemical composition of the metal points used. We illustrate how analysis can give new art historical information by means of two case studies. Two particular drawings, one of Albrecht Dürer, showing a profile portrait of his closest friend, Willibald Pirckheimer (1503), and a second one attributed to Jan van Eyck, showing a Portrait of an elderly man, often named Niccolò Albergati, are the object of intense art historical controversy. Both drawings show inscriptions next to the figures. Analyses by Sy-XRF could reveal the same kind of silverpoint for the Pirckheimer portrait and its mysterious Greek inscription, contrary to the drawing by Van Eyck where at least three different metal points were applied. Two different types of silver marks were found in this portrait. Silver containing gold marks were detected in the inscriptions and over-subscriptions. This is the first evidence of the use of gold points for metal point drawings in the Middle Ages.</abstract>
    <parentTitle language="eng">Spectrochimica acta B</parentTitle>
    <identifier type="old">4789</identifier>
    <identifier type="doi">10.1016/j.sab.2004.07.023</identifier>
    <identifier type="issn">0584-8547</identifier>
    <identifier type="issn">0038-6987</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <enrichment key="date_peer_review">11.11.2004</enrichment>
    <author>I. Reiche</author>
    <author>Martin Radtke</author>
    <author>Achim Berger</author>
    <author>Wolf Görner</author>
    <author>T. Ketelsen</author>
    <author>Silke Merchel</author>
    <author>J. Riederer</author>
    <author>Heinrich Riesemeier</author>
    <author>M. Roth</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Sy-XRF analysis</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Drawing</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Metal point</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Albrecht Dürer</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Jan van Eyck</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Renaissance</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
  <doc>
    <id>25722</id>
    <completedYear/>
    <publishedYear>2012</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>18</pageFirst>
    <pageLast>21</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume>273</volume>
    <type>article</type>
    <publisherName>Elsevier B.V.</publisherName>
    <publisherPlace>Amsterdam</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Accurate stopping power determination of 15N ions for hydrogen depth profiling by a combination of ion beams and synchrotron radiation</title>
    <abstract language="eng">Hydrogen analysis is of particular importance in thin film technology and it is often necessary to obtain a depth profile. The method with the best depth resolution is NRA using the 6385 keV resonance of the 1H(15N,αγ)12C nuclear reaction. The correct quantification of the depth and concentration scales in the measured hydrogen profiles relies on accurate stopping power values. We present a method to deduce these values from a combination of two techniques: NRA and X-ray reflectometry (XRR). This method is applied to the determination of the stopping power of ~6.4 MeV 15N ions in H-containing amorphous Si-layers (a-Si:H). Density-independent stopping powers at different H concentrations are determined by combining the results from NRA and XRR with an overall uncertainty of 3.3%, showing good agreement with SRIM values. This work shows exemplary the methodology for future evaluation of stopping powers for quality assurance in NRA.</abstract>
    <parentTitle language="eng">Nuclear instruments and methods in physics research B</parentTitle>
    <identifier type="old">28452</identifier>
    <identifier type="doi">10.1016/j.nimb.2011.07.027</identifier>
    <identifier type="issn">0168-583X</identifier>
    <identifier type="issn">1872-9584</identifier>
    <enrichment key="date_peer_review">18.04.2012</enrichment>
    <author>M. Zier</author>
    <author>Uwe Reinholz</author>
    <author>Heinrich Riesemeier</author>
    <author>Martin Radtke</author>
    <author>F. Munnik</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Nuclear reaction analysis</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Hydrogen depth profiling</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Stopping cross section</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Linear energy transfer</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Synchrotron radiation</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>XRR</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>23174</id>
    <completedYear/>
    <publishedYear>2011</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>125</pageFirst>
    <pageLast>132</pageLast>
    <pageNumber/>
    <edition/>
    <issue>1-2</issue>
    <volume>281</volume>
    <type>article</type>
    <publisherName>Elsevier B.V.</publisherName>
    <publisherPlace>Amsterdam</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Iodine in alluvial platinum-palladium nuggets: evidence for biogenic precious-metal fixation</title>
    <abstract language="eng">Synchrotron radiation-induced X-ray fluorescence (SR-XRF) spectrometry was applied to determine iodine concentrations in alluvial Pt–Pd aggregates with delicate morphological features from Córrego Bom Sucesso, Minas Gerais, Brazil. The millimetre-sized botryoidal and rod-shaped grains of alluvial Pt–Pd–Hg intermetallic compounds have surprisingly high concentrations of iodine, in the range from 10 to ~ 120 μg/g. Because iodine is a strongly biophile element, known to be enriched in peatlands and plant remains in soils by microbial activity, its concentration in the Pt–Pd nuggets suggests biogenic precious-metal fixation in the aqueous alluvial milieu. Biogenic and inorganic processes, such as bioreduction and electrochemical metal accretion, could mutually have contributed to the growth of nanoparticles, formed on organic templates, to millimetric Pt–Pd nuggets.</abstract>
    <parentTitle language="eng">Chemical geology</parentTitle>
    <identifier type="old">25745</identifier>
    <identifier type="doi">10.1016/j.chemgeo.2010.12.003</identifier>
    <identifier type="issn">0009-2541</identifier>
    <identifier type="issn">1872-6836</identifier>
    <enrichment key="date_peer_review">07.02.2011</enrichment>
    <author>A.R. Cabral</author>
    <author>Martin Radtke</author>
    <author>F. Munnik</author>
    <author>B. Lehmann</author>
    <author>Uwe Reinholz</author>
    <author>Heinrich Riesemeier</author>
    <author>M. Tupinambá</author>
    <author>R. Kwitko-Ribeiro</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Lodine</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Pt-Pd nuggets</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Córrego Bom Sucesso</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Minas Gerais</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Brazil</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>30225</id>
    <completedYear/>
    <publishedYear>2013</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>183</pageFirst>
    <pageLast>188</pageLast>
    <pageNumber/>
    <edition/>
    <issue>4</issue>
    <volume>42</volume>
    <type>article</type>
    <publisherName>Wiley</publisherName>
    <publisherPlace>Chichester</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Improvement of PLS regression-based XRF spectroscopy quantification using multiple step procedure and Monte Carlo simulation</title>
    <abstract language="eng">Partial least squares (PLS) regression-based methods have been proven to be a good alternative for quantification in X-ray fluorescence spectroscopy. These methods are fast and easy to use though giving satisfactory results under certain conditions. One of these conditions is the necessity of having a great number of spectra to build the model (training set). The choice of the constituent concentration range in the training set has a big influence on the accuracy of the model. Better accuracy is obtained if the model is built in relatively narrow regions containing (or close to) the real concentration value.&#13;
&#13;
In the present work, Monte Carlo (MC) simulated spectra are used to form the training set. The advantage to use MC generated training spectra is the unlimited availability of perfect standards.&#13;
&#13;
This paper aims to improve the accuracy of the method by introducing a multiple step procedure in order to build the PLS model using narrow concentration range close to (or containing) the real concentration values in the samples to be measured.&#13;
&#13;
This approach consists of an initial guess of the constituents' concentrations and a preliminary PLS model before building the final model. The prediction of ten MC simulated alloy standard samples containing Ti, Mn, Fe, Co, Cu, Zn, Sr, Zr, and Mo using this method allowed to have average relative prediction errors less than 5% for elements with narrow concentration ranges.</abstract>
    <parentTitle language="eng">X-ray spectrometry</parentTitle>
    <identifier type="old">33185</identifier>
    <identifier type="doi">10.1002/xrs.2479</identifier>
    <identifier type="issn">0049-8246</identifier>
    <enrichment key="date_peer_review">20.02.2014</enrichment>
    <author>Andrianiaina Rakotondrajoa</author>
    <author>Günter Buzanich</author>
    <author>Martin Radtke</author>
    <author>Uwe Reinholz</author>
    <author>Heinrich Riesemeier</author>
    <author>L. Vincze</author>
    <author>R. Raboanary</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>SR-microXRF</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Quantification</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>PLS</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Monte Carlo</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>43348</id>
    <completedYear/>
    <publishedYear>2017</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>25033</pageFirst>
    <pageLast>25042</pageLast>
    <pageNumber/>
    <edition/>
    <issue>45</issue>
    <volume>121</volume>
    <type>article</type>
    <publisherName>ACS Publications</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Spectroscopic Study of the Role of Metal Ions in the Adsorption Process of Phosphate in Nanoscaled Adsorbers Based on Metal (Zn/ Fe/Zr) Oxyhydroxides</title>
    <abstract language="eng">Currently great effort is made to find materials and technologies for the recycling of phosphate from wastewater.&#13;
Herein, we present an in-depth study of the Phosphate adsorption mechanism of a promising adsorber material, a Zn−Fe−Zr oxyhydroxide-based nanostructured precipitate. The behavior of the multicomponent nanomaterial, consisting of both crystalline and amorphous parts, is investigated via X-ray absorption fine structure spectroscopy and Mössbauer spectroscopy, revealing the importance of the nanostructured composition for the phosphate adsorption. We found evidence that adsorption takes place especially in the vicinity of iron sites in the amorphous part of the material.</abstract>
    <parentTitle language="eng">The Journal of Physical Chemistry C</parentTitle>
    <identifier type="doi">10.1021/acs.jpcc.7b04773</identifier>
    <identifier type="issn">1932-7447</identifier>
    <enrichment key="date_peer_review">07.12.2017</enrichment>
    <author>Wojciech Szczerba</author>
    <author>M. Schneider</author>
    <author>J. Żukrowski</author>
    <author>Ana de Oliveira Guilherme Buzanich</author>
    <author>Heinrich Riesemeier</author>
    <author>M. Sikora</author>
    <author>K. Mandel</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Zn-Fe-Zr nanoparticles</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Adsorption of phosphate</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>XAFS</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Catalysis</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="ddc" number="620">Ingenieurwissenschaften und zugeordnete Tätigkeiten</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>23219</id>
    <completedYear/>
    <publishedYear>2009</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>39</pageFirst>
    <pageLast>44</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume>33</volume>
    <type>article</type>
    <publisherName>Groupe</publisherName>
    <publisherPlace>Rennes</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Synchrotron radiation induced X-ray fluorescence for the characterization of ancient gold objects</title>
    <parentTitle language="eng">ArcheoSciences</parentTitle>
    <identifier type="old">25791</identifier>
    <identifier type="issn">0399-1237</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <author>Martin Radtke</author>
    <author>Uwe Reinholz</author>
    <author>Heinrich Riesemeier</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Gold</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Hiddensee treasure</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Nebra sky disc</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Non-destructive testing</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Silver point drawings</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Synchrotron</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>X-ray fluorescence</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Or</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Trésor d´Hiddensee</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Disque déleste de Nebra</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Analyse non-destructive</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Dessins à pointe d´argent</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Synchrotron</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Fluorescence à rayons X</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
  <doc>
    <id>30541</id>
    <completedYear/>
    <publishedYear>2014</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>012016-1</pageFirst>
    <pageLast>012016-5</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume>499</volume>
    <type>article</type>
    <publisherName>IOP Publ.</publisherName>
    <publisherPlace>Bristol, UK</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">μ-SRXRF characterization of Brazilian emeralds</title>
    <abstract language="eng">The aim of the present study is to characterize emeralds from different mines of Brazil by using Synchrotron Radiation X-ray Fluorescence Microanalysis (µ-SRXRF). The advantage of this technique is that we can analyze a homogeneous, inclusion free area of the stone with the microbeam to distinguish the elemental fingerprint according to the provenance of the emerald. A total of 47 samples belonging to 5 different Brazilian mines were studied in this work and 28 elements were identified. By means of Principal Component Analysis (PCA) it is possible to build different groups according to the provenance of the stones, which allows to assign samples of unknown origin to the according mine.</abstract>
    <parentTitle language="eng">Journal of physics / Conference series</parentTitle>
    <identifier type="old">33516</identifier>
    <identifier type="doi">10.1088/1742-6596/499/1/012016</identifier>
    <identifier type="issn">1742-6588</identifier>
    <identifier type="issn">1742-6596</identifier>
    <enrichment key="eventName">22nd International congress on X-ray optics and microanalysis</enrichment>
    <enrichment key="eventPlace">Hamburg, Germany</enrichment>
    <enrichment key="eventStart">02.09.2013</enrichment>
    <enrichment key="eventEnd">06.09.2013</enrichment>
    <enrichment key="zsBemerkung">Die Aufnahme ist grundsätzlich falsch, da es sich trotz des Titels ("Journal of physics / Conference series") nicht um eine Zeitschrift handelt, sondern um eine Tagungsband-Reihe. Da sehr viele Artikel an diesem Eintrag hängen, wäre die Korrektur aber extrem aufwändig.  Die Tagungsband-Reihe findet sich in der Master Journal List bzw. in dem Journal Citation Report selbstverständlich nicht wieder, da es ja keine Zeitschrift ist. Allerdings wird die Tagungsband-Reihe sehr wohl von Thomson-Reuters für Ihre Datenbank ausgewertet, als "Book Series". Daher muss sichergestellt werden, dass die dort erscheinenden Artikel auch für die "1000-Euro-Liste" berücksichtigt werden.  Die einfachste Lösung ist es, den Eintrag als Zeitschrift zu belassen, und das Häkchen bei "In MJL/CPCI von ISI enthalten" zu setzen. Das ist zwar formal nicht ganz korrekt, erzeugt aber das richtige Ergebnis.  Jan Harloff-Puhr 11.7.2014</enrichment>
    <enrichment key="date_peer_review">14.04.2014</enrichment>
    <author>Jessica Curado</author>
    <author>Martin Radtke</author>
    <author>Günter Buzanich</author>
    <author>Uwe Reinholz</author>
    <author>Heinrich Riesemeier</author>
    <author>R.A.S. Guttler</author>
    <author>M.A. Rizzutto</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>µ-SRXRF</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>BAMline</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Emeralds</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Geoscience</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>24370</id>
    <completedYear/>
    <publishedYear>2011</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>250</pageFirst>
    <pageLast>257</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume>654</volume>
    <type>article</type>
    <publisherName>North-Holland</publisherName>
    <publisherPlace>Amsterdam</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">A new pnCCD-based color X-ray camera for fast spatial and energy-resolved measurements</title>
    <abstract language="eng">We present a new high resolution X-ray imager based on a pnCCD detector and a polycapillary optics. The properties of the pnCCD like high quantum efficiency, high energy resolution and radiation hardness are maintained, while color corrected polycapillary lenses are used to direct the fluorescence photons from every spot on a sample to a corresponding pixel on the detector. The camera is sensitive to photons from 3 to 40 keV with still 30% quantum efficiency at 20 keV. The pnCCD is operated in split frame mode allowing a high frame rate of 400 Hz with an energy resolution of 152 eV for Mn Kα (5.9 keV) at 450 kcps. In single-photon counting mode (SPC), the time, energy and position of every fluorescence photon is recorded for every frame. A dedicated software enables the visualization of the elements distribution in real time without the need of post-processing the data. A description of the key components including detector, X-ray optics and camera is given. First experiments show the capability of the camera to perform fast full-field X-Ray Fluorescence (FF-XRF) for element analysis. The imaging performance with a magnifying optics (3×) has also been successfully tested.</abstract>
    <parentTitle language="eng">Nuclear instruments and methods in physics research A</parentTitle>
    <identifier type="old">27031</identifier>
    <identifier type="doi">10.1016/j.nima.2011.05.080</identifier>
    <identifier type="issn">0168-9002</identifier>
    <identifier type="issn">0167-5087</identifier>
    <enrichment key="date_peer_review">26.09.2011</enrichment>
    <author>I. Ordavo</author>
    <author>S. Ihle</author>
    <author>V. Arkadiev</author>
    <author>Oliver Scharf</author>
    <author>H. Soltau</author>
    <author>A. Bjeoumikhov</author>
    <author>S. Bjeoumikhova</author>
    <author>Günter Buzanich</author>
    <author>R. Gubzhokov</author>
    <author>A. Günther</author>
    <author>R. Hartmann</author>
    <author>P. Holl</author>
    <author>N. Kimmel</author>
    <author>M. Kühbacher</author>
    <author>M. Lang</author>
    <author>N. Langhoff</author>
    <author>A. Liebel</author>
    <author>Martin Radtke</author>
    <author>Uwe Reinholz</author>
    <author>Heinrich Riesemeier</author>
    <author>G. Schaller</author>
    <author>F. Schopper</author>
    <author>L. Strüder</author>
    <author>C. Thamm</author>
    <author>R. Wedell</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>X-ray CCD camera</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>pnCCD</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Fast X-ray imaging</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>XRF</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Full-field X-ray fluorescence</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Elemental analysis</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>High quantum efficiency</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>High energy resolution</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Polycapillary optics</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>17555</id>
    <completedYear/>
    <publishedYear>2008</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>2405</pageFirst>
    <pageLast>2407</pageLast>
    <pageNumber/>
    <edition/>
    <issue>10</issue>
    <volume>266</volume>
    <type>article</type>
    <publisherName>Elsevier</publisherName>
    <publisherPlace>Amsterdam</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Determination of Cr(VI) in wood specimen: A XANES study at the Cr K edge</title>
    <abstract language="eng">The content of chromium in different oxidation states in chromium-treated wood was studied with XANES (X-ray absorption near-edge structure) measurements at the Cr K absorption edge. It could be shown that wood samples treated with Cr(VI) (pine and beech) did still contain a measurable content of Cr(VI) after four weeks conditioning. If such wood samples were heat exposed for 2 h with 135 °C prior conditioning, Cr(VI) was no longer detected by XANES, indicating a complete reduction to chromium (III).</abstract>
    <parentTitle language="eng">Nuclear instruments and methods in physics research B</parentTitle>
    <identifier type="old">19622</identifier>
    <identifier type="doi">10.1016/j.nimb.2008.03.011</identifier>
    <identifier type="issn">0168-583X</identifier>
    <identifier type="issn">1872-9584</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <enrichment key="date_peer_review">05.06.2008</enrichment>
    <author>Erik Strub</author>
    <author>Rüdiger Plarre</author>
    <author>Martin Radtke</author>
    <author>Uwe Reinholz</author>
    <author>Heinrich Riesemeier</author>
    <author>Ute Schoknecht</author>
    <author>Klaus Urban</author>
    <author>P. Jüngel</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>X-ray spectroscopy</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>XANES</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>XAS</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>XRF</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Specifikation</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Reduction</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
  <doc>
    <id>13870</id>
    <completedYear/>
    <publishedYear>2002</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>120</pageFirst>
    <pageLast>125</pageLast>
    <pageNumber/>
    <edition/>
    <issue>1-4</issue>
    <volume>188</volume>
    <type>article</type>
    <publisherName>Elsevier</publisherName>
    <publisherPlace>Amsterdam</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">RBS, SY-XRF, INAA and ICP-IDMS of antimony implanted in silicon - A multi-method approach to characterize and certify a reference material</title>
    <abstract language="eng">A layer of Sb atoms, implanted with an energy of 400 keV and a nominal dose of 5×1016 atoms/cm2 into a high purity silicon wafer, was certified for its areal density (atoms/cm2) using Rutherford backscattering spectrometry (RBS), instrumental neutron activation analysis (INAA) and inductively coupled plasma isotope dilution mass spectrometry (ICP-IDMS) and for its isotope ratio using INAA and ICP-IDMS. Excellent agreement between the results of the different independent methods was found. In the present work, the measurements of the homogeneity of the areal density of Sb, previously determined with RBS in spots having 1 mm diameter, are improved with synchrotron X-ray fluorescence analysis: Higher precision in even smaller sample spots allows to estimate a reduced inhomogeneity of the whole batch of samples of the order of only 0.4%. Thus the uncertainty of the certified value can further be reduced. Down to fractions of a chip with 0.3×0.4 mm2 area, the areal density is now certified as (4.81±0.06)×1016 Sb atoms/cm2, where the expanded uncertainty 0.06 (coverage factor k=2) corresponds to only 1.2%. The relative merits of the different analytical methods are discussed.</abstract>
    <parentTitle language="eng">Nuclear instruments and methods in physics research B</parentTitle>
    <identifier type="old">15635</identifier>
    <identifier type="doi">10.1016/S0168-583X(01)01038-2</identifier>
    <identifier type="issn">0168-583X</identifier>
    <identifier type="issn">1872-9584</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <enrichment key="date_peer_review">20.11.2006</enrichment>
    <author>Klaus Ecker</author>
    <author>U. Wätjen</author>
    <author>Achim Berger</author>
    <author>L. Persson</author>
    <author>Wolfgang Pritzkow</author>
    <author>Martin Radtke</author>
    <author>Heinrich Riesemeier</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Certified reference material</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>RBS</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>INAA</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>ICP-IDMS</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>XRF</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>SY-XRF</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
  <doc>
    <id>2663</id>
    <completedYear/>
    <publishedYear>2003</publishedYear>
    <thesisYearAccepted/>
    <language>deu</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume>4</volume>
    <type>article</type>
    <publisherName>Foto Text Verl.</publisherName>
    <publisherPlace>Stuttgart</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="deu">Silberstiftzeichnungen - Zerstörungsfreie Spurenanalyse mit Synchrotronstrahlung</title>
    <parentTitle language="deu">PapierRestaurierung</parentTitle>
    <identifier type="old">2639</identifier>
    <identifier type="issn">1563-2628</identifier>
    <enrichment key="eventName">10. IADA-Kongress (Internationale Arbeitsgemeinschaft der Archiv-, Bibliotheks- und Graphikrestauratoren)</enrichment>
    <enrichment key="eventPlace">Göttingen, Deutschland</enrichment>
    <enrichment key="eventStart">2003-09-21</enrichment>
    <enrichment key="eventEnd">2003-09-25</enrichment>
    <author>I. Reiche</author>
    <author>Achim Berger</author>
    <author>Wolf Görner</author>
    <author>Silke Merchel</author>
    <author>Martin Radtke</author>
    <author>J. Riederer</author>
    <author>Heinrich Riesemeier</author>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Weder Datei noch physisches Exemplar vorhanden ("No Access")</collection>
  </doc>
  <doc>
    <id>31837</id>
    <completedYear/>
    <publishedYear>2014</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1296</pageFirst>
    <pageLast>1304</pageLast>
    <pageNumber/>
    <edition/>
    <issue>6</issue>
    <volume>21</volume>
    <type>article</type>
    <publisherName>Blackwell Publishing</publisherName>
    <publisherPlace>Oxford</publisherPlace>
    <creatingCorporation>International Union of Crystallography</creatingCorporation>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Investigation of short-range structural order in Zr69.5Cu12Ni11Al7.5 and Zr41.5Ti41.5Ni17 glasses, using X-ray absorption spectroscopy and ab initio molecular dynamics simulations</title>
    <abstract language="eng">Short-range order has been investigated in Zr69.5Cu12Ni11Al7.5 and Zr41.5Ti41.5Ni17 metallic glasses using X-ray absorption spectroscopy and ab initio molecular dynamics simulations. While both of these alloys are good glass formers, there is a difference in their glass-forming abilities (Zr41.5Ti41.5Ni17 &gt; Zr69.5Cu12Ni11Al7.5). This difference is explained by inciting the relative importance of strong chemical order, icosahedral content, cluster symmetry and configuration diversity.</abstract>
    <parentTitle language="eng">Journal of synchrotron radiation</parentTitle>
    <identifier type="old">34886</identifier>
    <identifier type="doi">10.1107/S1600577514017792</identifier>
    <identifier type="issn">0909-0495</identifier>
    <identifier type="issn">1600-5775</identifier>
    <enrichment key="date_peer_review">06.11.2014</enrichment>
    <author>D. Lahiri</author>
    <author>S.M. Sharma</author>
    <author>A.K. Verma</author>
    <author>B. Vishwanadh</author>
    <author>G.K. Dey</author>
    <author>G. Schumacher</author>
    <author>T. Scherb</author>
    <author>Heinrich Riesemeier</author>
    <author>Uwe Reinholz</author>
    <author>Martin Radtke</author>
    <author>S. Banerjee</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Multi-component alloy</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Glass-forming ability</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>XAFS</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Local structure</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>AIMD simulation</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>4574</id>
    <completedYear/>
    <publishedYear>2004</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>83</pageFirst>
    <pageLast>91</pageLast>
    <pageNumber/>
    <edition/>
    <issue>1-2</issue>
    <volume>226</volume>
    <type>article</type>
    <publisherName>Elsevier</publisherName>
    <publisherPlace>Amsterdam</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Following the traces of Albrecht Dürer: analysis of silverpoint drawings by spatially resolved synchrotron-induced X-ray fluorescence analysis</title>
    <abstract language="eng">Spatially resolved X-ray fluorescence analysis using synchrotron radiation (SR-XRF) at the wavelength shifter beamline, BAMline, at BESSY was used to investigate Renaissance silverpoint drawings as it is extremely sensitive, non-destructive and can be carried out in air using an excitation spot in the hundred micrometer range.

This paper deals with first results of the study of silverpoint drawings of Albrecht Dürer (14711528) belonging to the sketchbook that Albrecht Dürer used during a travel to the Netherlands in 1520/21. These results are compared to a PIXE study performed on drawings from the same sketchbook.

The minor element composition of the silverpoint used for the drawings in the sketchbook was (10.6 ± 3.5) wt.% of Cu and traces of Zn. Mercury was found in the marks but does not belong to the initial composition of the silverpoint as it is attributed to an alteration phenomenon. One drawing of the sketchbook represents an exception. It consists of silver marks containing an additional minor element, Zn, in the marks and was, therefore, created with another silverpoint, probably at a different time than the other drawings.</abstract>
    <parentTitle language="eng">Nuclear instruments and methods in physics research B</parentTitle>
    <identifier type="old">4788</identifier>
    <identifier type="doi">10.1016/j.nimb.2004.03.081</identifier>
    <identifier type="issn">0168-583X</identifier>
    <identifier type="issn">1872-9584</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <enrichment key="date_peer_review">11.11.2004</enrichment>
    <author>I. Reiche</author>
    <author>Achim Berger</author>
    <author>Wolf Görner</author>
    <author>Silke Merchel</author>
    <author>Martin Radtke</author>
    <author>J. Riederer</author>
    <author>Heinrich Riesemeier</author>
    <author>M. Roth</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Synchrotron</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>SR-XRF analysis</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Drawing</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Silverpoint</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Albrecht Dürer</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
  <doc>
    <id>11929</id>
    <completedYear/>
    <publishedYear>2005</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>160</pageFirst>
    <pageLast>163</pageLast>
    <pageNumber/>
    <edition/>
    <issue>2</issue>
    <volume>34</volume>
    <type>article</type>
    <publisherName>Wiley</publisherName>
    <publisherPlace>Chichester</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Layout and first XRF Applications of the BAMline at BESSY II+</title>
    <abstract language="eng">The first hard x-ray beamline at BESSY II has been installed by BAM and PTB at a superconducting 7 T wavelength shifter. The main optical elements of the beamline are a double-multilayer monochromator and a double-crystal monochromator. Depending on the application, the two devices are used separately or in-line. The main applications of the monochromatic radiation with photon energies up to 60 keV are x-ray fluorescence analysis, micro computed tomography, x-ray topography, detector calibration and reflectometry. Calculable undispersed radiation up to 200 keV is available for radiometric applications.</abstract>
    <parentTitle language="eng">X-ray spectrometry</parentTitle>
    <identifier type="old">13622</identifier>
    <identifier type="doi">10.1002/xrs.750</identifier>
    <identifier type="issn">0049-8246</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <enrichment key="date_peer_review">20.01.2006</enrichment>
    <author>Heinrich Riesemeier</author>
    <author>Klaus Ecker</author>
    <author>Wolf Görner</author>
    <author>Bernd R. Müller</author>
    <author>Martin Radtke</author>
    <author>M. Krumrey</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>BAMline</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>XRF</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
  <doc>
    <id>3570</id>
    <completedYear/>
    <publishedYear>2004</publishedYear>
    <thesisYearAccepted/>
    <language>deu</language>
    <pageFirst>30</pageFirst>
    <pageLast>38</pageLast>
    <pageNumber/>
    <edition/>
    <issue>2</issue>
    <volume>5</volume>
    <type>article</type>
    <publisherName>Foto Text Verl.</publisherName>
    <publisherPlace>Stuttgart</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="deu">Metallstiftzeichnungen Albrecht Dürers</title>
    <parentTitle language="deu">PapierRestaurierung</parentTitle>
    <identifier type="old">3706</identifier>
    <identifier type="issn">1563-2628</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <author>I. Reiche</author>
    <author>Achim Berger</author>
    <author>A. Duval</author>
    <author>Wolf Görner</author>
    <author>Silke Merchel</author>
    <author>Martin Radtke</author>
    <author>J. Riederer</author>
    <author>Heinrich Riesemeier</author>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Synchrotron</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>XRF analysis</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Drawings</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Archaeometry</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Röntgenfluoreszenzanalyse (RFA)</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Zeichnungen</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Archäometrie</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Albrecht Dürer</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
  <doc>
    <id>12532</id>
    <completedYear/>
    <publishedYear>2006</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>169</pageFirst>
    <pageLast>173</pageLast>
    <pageNumber/>
    <edition/>
    <issue>2</issue>
    <volume>83</volume>
    <type>article</type>
    <publisherName>Springer</publisherName>
    <publisherPlace>Berlin</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Spatially resolved synchrotron radiation induced X-ray fluorescence analyses of rare Rembrandt silverpoint drawings</title>
    <abstract language="eng">New analyses of a series of very rare silverpoint drawings that were executed by Rembrandt Harmensz. van Rijn (16061669) which are kept today in the Kupferstichkabinett (Museum of Prints and Drawings) of the State Museums of Berlin are reported here. Analysis of these drawings requires particular attention because the study has to be fully non-destructive and extremely sensitive. The metal alloy on the paper does not exceed some hundreds of µg/cm². Therefore, synchrotron radiation induced X-ray fluorescence (SR-XRF) is  together with external micro-proton-induced X-ray emission  the only well-suited method for the analyses of metalpoint drawings. In some primary work, about 25 German and Flemish metalpoint drawings were investigated using spatially resolved SR-XRF analysis at the BAMline at BESSY. This study enlarges the existing FrenchGerman database of metalpoint drawings dating from the 15th and 16th centuries, as these Rembrandt drawings originate from the 17th century where this graphical technique was even rarer and already obsolete. It also illustrates how SR-XRF analysis can reinforce art historical assumptions on the dating of drawings and their connection.</abstract>
    <parentTitle language="eng">Applied physics A</parentTitle>
    <identifier type="old">14260</identifier>
    <identifier type="doi">10.1007/s00339-006-3505-4</identifier>
    <identifier type="issn">0947-8396</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <enrichment key="date_peer_review">11.07.2006</enrichment>
    <author>I. Reiche</author>
    <author>Martin Radtke</author>
    <author>Achim Berger</author>
    <author>Wolf Görner</author>
    <author>Silke Merchel</author>
    <author>Heinrich Riesemeier</author>
    <author>H. Bevers</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>X-ray spectrometry</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>XRF</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Röntgenfluoreszenzanalyse</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>RFA</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Silverpoint drawing</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Silberstiftzeichnung</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
  <doc>
    <id>14186</id>
    <completedYear/>
    <publishedYear>2006</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>540</pageFirst>
    <pageLast>544</pageLast>
    <pageNumber/>
    <edition/>
    <issue>9</issue>
    <volume>48</volume>
    <type>article</type>
    <publisherName>British Institute of Non-Destructive Testing</publisherName>
    <publisherPlace>Northampton</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Non-destructive investigation of composition, chemical properties and structure of materials by synchrotron radiation</title>
    <parentTitle language="eng">Insight</parentTitle>
    <identifier type="old">15966</identifier>
    <identifier type="issn">0007-1137</identifier>
    <enrichment key="bibliotheksstandort">ZB 40</enrichment>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <enrichment key="date_peer_review">14.12.2006</enrichment>
    <author>Wolf Görner</author>
    <author>Maik Eichelbaum</author>
    <author>Ralf Matschat</author>
    <author>K. Rademann</author>
    <author>Martin Radtke</author>
    <author>Uwe Reinholz</author>
    <author>Heinrich Riesemeier</author>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
  <doc>
    <id>14236</id>
    <completedYear/>
    <publishedYear>2005</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>505</pageFirst>
    <pageLast>511</pageLast>
    <pageNumber/>
    <edition/>
    <issue>1-2</issue>
    <volume>240</volume>
    <type>article</type>
    <publisherName>Elsevier</publisherName>
    <publisherPlace>Amsterdam</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Fingerprinting ancient gold by measuring Pt with spatially resolved high energy Sy-XRF</title>
    <abstract language="eng">Trace elements of ancient gold such as Pt, give fundamental information on the circulation of the metal in the past. In the case of objects from the cultural heritage, the determination of trace elements requires non-destructive point analysis in general. These conditions and the need of good detection limits restrain the number of applicable analytical techniques.
After the development of a PIXE set-up with a selective Cu or Zn filter of 75 µm and of a PIXE-XRF set-up using a primary target of As, we tested the possibilities of spatially resolved Sy-XRF to determine Pt in gold alloys. With a Zn filter, PIXE showed a detection limit of 1000 ppm in gold while PIXE-XRF lowers this detection limit down to 80 ppm. This last value being constrained by the resonant Raman effect produced on gold. In order to improve the detection limit of Pt keeping the non-destructiveness and access to point analysis, we developed an analytical protocol for XRF with synchrotron radiation at BESSY II, using the BAMline set-up. The L-lines of Pt were excited by a beam of energy above and below 11.564 keV and measured using a Si(Li) detector with a 50 µm Cu filter. A µ-beam of 100250 µm2 was used according to the size of the sample. The determination of the Pt content in the samples was carried out by Monte-Carlo simulation and subtraction of Au and Pt spectra obtained on pure standards. The limit of detection for Pt of 20 ppm was determined by using certified standards. The detection limits of a small set of other characteristic elements of gold were also measured using an incident energy of 33 keV.</abstract>
    <parentTitle language="eng">Nuclear instruments and methods in physics research B</parentTitle>
    <identifier type="old">16018</identifier>
    <identifier type="doi">10.1016/j.nimb.2005.06.150</identifier>
    <identifier type="issn">0168-583X</identifier>
    <identifier type="issn">1872-9584</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <enrichment key="date_peer_review">18.12.2006</enrichment>
    <author>M. F. Guerra</author>
    <author>T. Calligaro</author>
    <author>Martin Radtke</author>
    <author>I. Reiche</author>
    <author>Heinrich Riesemeier</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>PIXE-XRF</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Sy-XRF</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Pt</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Ancient gold</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Fingerprinting</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
  <doc>
    <id>14235</id>
    <completedYear/>
    <publishedYear>2005</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>137</pageFirst>
    <pageLast>150</pageLast>
    <pageNumber/>
    <edition/>
    <issue>2</issue>
    <volume>33</volume>
    <type>article</type>
    <publisherName>Dekker</publisherName>
    <publisherPlace>New York, NY</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Wavelenght Dispersive Synchrotron Microprobe Used for Material Analysis</title>
    <abstract language="eng">Synchrotron radiation (SR) has been used in recent years as an excellent excitation source for X-ray fluorescence spectrometry. SR offers, in contrast to conventional X-ray sources, highly brilliant polychromatic, polarized radiation with which micro-domain X-ray fluorescence spectrometry becomes possible. A feasibility study of utility, conducted at BESSY (Berlin) and at DELTA (Dortmund), both synchrotron facilities of the third generation, to evaluate the use of wavelength dispersive X-ray fluorescence spectrometry in combination with synchrotron radiation is presented. First results for material analysis, obtained by combining the synchrotron radiation and a commercially available spectrometer commonly attached to a scanning electron microscope, are presented. The spectrometer, of the linear type, uses curved focusing Bragg-crystals of the Johann type which leads to a high spectral resolution up to 3 eV. Examples of micro-domain analyses are presented and compared with those obtained by synchrotron radiation induced energy dispersive X-ray fluorescence.</abstract>
    <parentTitle language="eng">Instrumentation science &amp; technology</parentTitle>
    <identifier type="old">16017</identifier>
    <identifier type="doi">10.1081/CI-200048048</identifier>
    <identifier type="issn">1073-9149</identifier>
    <identifier type="issn">1525-6030</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <enrichment key="date_peer_review">18.12.2006</enrichment>
    <author>A. von Bohlen</author>
    <author>R. Hergenröder</author>
    <author>C. Sternemann</author>
    <author>M. Paulus</author>
    <author>Martin Radtke</author>
    <author>Heinrich Riesemeier</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Synchrotron radiation</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>WDXRF</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>EDXRF</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Micro analysis</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Material analysis</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
  <doc>
    <id>50855</id>
    <completedYear/>
    <publishedYear>2020</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1250</pageFirst>
    <pageLast>1255</pageLast>
    <pageNumber/>
    <edition/>
    <issue>5</issue>
    <volume>33</volume>
    <type>article</type>
    <publisherName>American Chemical Society</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Revealing Silver Nanoparticle Uptake by Macrophages Using SR-μXRF and LA-ICP-MS</title>
    <abstract language="eng">To better study the impact of nanoparticles on both in vitro and in vivo models, tissue distribution and cellular doses need to be described more closely. Here silver nanoparticles were visualized in alveolar macrophages by means of synchrotron radiation micro X-ray fluorescence spectroscopy (SR-μXRF) with high spatial resolution of 3 × 3 μm2. For the spatial allocation of silver signals to cells and tissue structures, additional elemental labeling was carried out by staining with eosin, which binds to protein and can be detected as bromine signal with SR-μXRF. The method was compatible with immunostaining of macrophage antigens. We found that the silver distribution obtained with SR-μXRF was largely congruent with distribution maps from a subsequent laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) of the same tissue sites. The study shows a predominant, though not exclusive uptake of silver into alveolar macrophages in the rat lung, which can be modeled by a similar uptake in cultured alveolar macrophages. Advantages and limitations of the different strategies for measuring nanoparticle uptake at the single cell level are discussed.</abstract>
    <parentTitle language="eng">Chemical Research in Toxicology</parentTitle>
    <identifier type="doi">10.1021/acs.chemrestox.9b00507</identifier>
    <enrichment key="date_peer_review">10.06.2020</enrichment>
    <enrichment key="opus.doi.autoCreate">false</enrichment>
    <enrichment key="opus.urn.autoCreate">true</enrichment>
    <author>O. Reifschneider</author>
    <author>A. Vennemann</author>
    <author>Günter Buzanich</author>
    <author>Martin Radtke</author>
    <author>Uwe Reinholz</author>
    <author>Heinrich Riesemeier</author>
    <author>J Hogeback</author>
    <author>C. Köppen</author>
    <author>M. Großgarten</author>
    <author>M. Sperling</author>
    <author>M. Wiemann</author>
    <author>U. Karst</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Synchrotron</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>BAMline</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>XRF</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Nanoparticle</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Macrophagen</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="institutes" number="">6 Materialchemie</collection>
    <collection role="institutes" number="">6.3 Strukturanalytik</collection>
    <collection role="themenfelder" number="">Chemie und Prozesstechnik</collection>
    <collection role="themenfelder" number="">Chemische Charakterisierung und Spurenanalytik</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>23948</id>
    <completedYear/>
    <publishedYear>2011</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>2532</pageFirst>
    <pageLast>2538</pageLast>
    <pageNumber/>
    <edition/>
    <issue>7</issue>
    <volume>83</volume>
    <type>article</type>
    <publisherName>American Chemical Society</publisherName>
    <publisherPlace>Washington, DC</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Compact pnCCD-based X-ray camera with high spatial and energy resolution: a color X-ray camera</title>
    <abstract language="eng">For many applications there is a requirement for nondestructive analytical investigation of the elemental distribution in a sample. With the improvement of X-ray optics and spectroscopic X-ray imagers, full field X-ray fluorescence (FF-XRF) methods are feasible. A new device for high-resolution X-ray imaging, an energy and spatial resolving X-ray camera, is presented. The basic idea behind this so-called 'color X-ray camera' (CXC) is to combine an energy dispersive array detector for X-rays, in this case a pnCCD, with polycapillary optics. Imaging is achieved using multiframe recording of the energy and the point of impact of single photons. The camera was tested using a laboratory 30 µm microfocus X-ray tube and synchrotron radiation from BESSY II at the BAMline facility. These experiments demonstrate the suitability of the camera for X-ray fluorescence analytics. The camera simultaneously records 69696 spectra with an energy resolution of 152 eV for manganese Kα with a spatial resolution of 50 µm over an imaging area of 12.7 × 12.7 mm². It is sensitive to photons in the energy region between 3 and 40 keV, limited by a 50 µm beryllium window, and the sensitive thickness of 450 µm of the chip. Online preview of the sample is possible as the software updates the sums of the counts for certain energy channel ranges during the measurement and displays 2-D false-color maps as well as spectra of selected regions. The complete data cube of 264 × 264 spectra is saved for further qualitative and quantitative processing.</abstract>
    <parentTitle language="eng">Analytical chemistry</parentTitle>
    <identifier type="old">26559</identifier>
    <identifier type="doi">10.1021/ac102811p</identifier>
    <identifier type="issn">0003-2700</identifier>
    <identifier type="issn">1520-6882</identifier>
    <enrichment key="date_peer_review">04.07.2011</enrichment>
    <author>Oliver Scharf</author>
    <author>S. Ihle</author>
    <author>I. Ordavo</author>
    <author>V. Arkadiev</author>
    <author>A. Bjeoumikhov</author>
    <author>S. Bjeoumikhova</author>
    <author>Günter Buzanich</author>
    <author>R. Gubzhokov</author>
    <author>A. Günther</author>
    <author>R. Hartmann</author>
    <author>M. Kühbacher</author>
    <author>M. Lang</author>
    <author>N. Langhoff</author>
    <author>A. Liebel</author>
    <author>Martin Radtke</author>
    <author>Uwe Reinholz</author>
    <author>Heinrich Riesemeier</author>
    <author>H. Soltau</author>
    <author>L. Strüder</author>
    <author>Andreas Thünemann</author>
    <author>R. Wedell</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Color X-ray camera</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>X-ray fluorescence</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>pnCCD</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Polycapillary optic</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Synchrotron radiation</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>17735</id>
    <completedYear/>
    <publishedYear>2008</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>2334</pageFirst>
    <pageLast>2338</pageLast>
    <pageNumber/>
    <edition/>
    <issue>10</issue>
    <volume>266</volume>
    <type>article</type>
    <publisherName>Elsevier</publisherName>
    <publisherPlace>Amsterdam</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Analysis of trace elements in gold alloys by SR-XRF at high energy at the BAMline</title>
    <abstract language="eng">Measuring in a non-destructive way the characteristic trace elements of the metal allows following the circulation of gold in the past. The aim of this work is to probe the possibilities of X-ray fluorescence with high energy synchrotron radiation (SR-XRF) at the BAMline at BESSY II to determine the concentration of Pt in ancient gold alloys. A HP-Ge detector was used to measure the Pt K-lines excited with an incident energy of 79.5 keV. Data processing was done by subtraction of a Pt free gold standard spectrum from the spectrum of the sample. Depending on the sample composition, the MDL ranges between 40 and 90 ppm. The first results obtained for a small set of gold alloys of different thickness, size and composition showed that high energy SR-XRF is a significant method for the non-destructive determination of Pt in gold.</abstract>
    <parentTitle language="eng">Nuclear instruments and methods in physics research B</parentTitle>
    <identifier type="old">19816</identifier>
    <identifier type="doi">10.1016/j.nimb.2008.03.008</identifier>
    <identifier type="issn">0168-583X</identifier>
    <identifier type="issn">1872-9584</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <enrichment key="date_peer_review">28.07.2008</enrichment>
    <author>M. F. Guerra</author>
    <author>Martin Radtke</author>
    <author>I. Reiche</author>
    <author>Heinrich Riesemeier</author>
    <author>Erik Strub</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>SR-XRF</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Gold</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Provenancing</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Trace elements</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
  <doc>
    <id>26357</id>
    <completedYear/>
    <publishedYear>2012</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1</pageFirst>
    <pageLast>9</pageLast>
    <pageNumber/>
    <edition/>
    <issue>8</issue>
    <volume>14</volume>
    <type>article</type>
    <publisherName>Kluwer</publisherName>
    <publisherPlace>Dordrecht</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Nitric acid-stabilized superparamagnetic iron oxide nanoparticles studied with X-rays</title>
    <abstract language="eng">Agglomerated superparamagnetic iron oxide nanoparticles can easily and in large scale be precipitated from iron salt solutions. Although the process is well known, it is ambiguously either assumed that magnetite or maghemite is obtained. The first part of our study clarifies this question using X-ray absorption spectroscopy. For further processing of the nanoparticles,&#13;
i.e., for giving them a surface functionality or incorporating them into composites, it is important to break the agglomerates and individualize the particles at first. This can effectively be done with nitric acid treatment. The influence of this process on the particles chemistry and structure was analyzed in great detail using X-ray diffraction, X-ray absorption, and smallangle X-ray scattering. In contrast to our expectation, no oxidation from magnetite (Fe3O4) to maghemite (γ- Fe2O3) was found; the formal valence of the particles in any case is magnetite (Fe3O4). Instead, an increase in the particles' surface disorder was discovered from X-ray absorption analyses and high-resolution transmission electron microscopy. The acid treatment roughens and distorts the surface of the nanoparticles which is connected with an increased spin disorder.</abstract>
    <parentTitle language="eng">Journal of nanoparticle research</parentTitle>
    <identifier type="old">29116</identifier>
    <identifier type="doi">10.1007/s11051-012-1066-3</identifier>
    <identifier type="issn">1388-0764</identifier>
    <identifier type="issn">1572-896X</identifier>
    <enrichment key="date_peer_review">27.08.2012</enrichment>
    <author>K. Mandel</author>
    <author>Wojciech Szczerba</author>
    <author>Andreas Thünemann</author>
    <author>Heinrich Riesemeier</author>
    <author>Matthias Girod</author>
    <author>G. Sextl</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>XANES</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>EXAFS</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>SAXS</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Coprecipitation</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Iron oxide spectra</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Ferrofluid</value>
    </subject>
    <collection role="ddc" number="620">Ingenieurwissenschaften und zugeordnete Tätigkeiten</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>31733</id>
    <completedYear/>
    <publishedYear>2014</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>19694</pageFirst>
    <pageLast>19701</pageLast>
    <pageNumber/>
    <edition/>
    <issue>36</issue>
    <volume>16</volume>
    <type>article</type>
    <publisherName>The Royal Soc. of Chemistry</publisherName>
    <publisherPlace>Cambridge</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Thermally induced structural rearrangement of the Fe(II) coordination geometry in metallo-supramolecular polyelectrolytes</title>
    <abstract language="eng">Rigid rod-type metallo-supramolecular coordination polyelectrolytes with Fe(II) centres (Fe-MEPEs) are produced via the self-assembly of the ditopic ligand 1,4-bis(2,2':6',2''-terpyridine-4'-yl)benzene (tpy-ph-tpy) and Fe(II) acetate. Fe-MEPEs exhibit remarkable electrochromic properties; they change colour from blue to transparent when an electric potential is applied. This electrochemical process is generally reversible. The blue colour in the ground state is a result of a metal-to-ligand charge transfer at the Fe(II) centre ion in a quasi-octahedral geometry. When annealed at temperatures above 100 °C, the blue colour turns into green and the formerly reversible electrochromic properties are lost, even after cooling down to room temperature. The thermally induced changes in the Fe(II) coordination sphere are investigated in situ during annealing of a solid Fe-MEPE using X-ray absorption fine structure (XAFS) spectroscopy. The study reveals that the thermally induced transition is not accompanied by a redox process at the Fe(II) centre. From the detailed analysis of the XAFS spectra, the changes are attributed to structural changes in the coordination sphere of the Fe(II) site. In the low temperature state, the Fe(II) ion rests in a quasi-octahedral coordination environment surrounded by six nitrogen atoms of the pyridine rings. The axial Fe–N bond length is 1.94 Å, while the equatorial bond length amounts to 1.98 Å. In the high temperature state, the FeN6-site exhibits a distortion with the axial Fe–N bonds being shortened to 1.88 Å and the equatorial Fe–N bonds being elongated to 2.01 Å.</abstract>
    <parentTitle language="eng">Physical chemistry, chemical physics</parentTitle>
    <identifier type="old">34779</identifier>
    <identifier type="doi">10.1039/c4cp01187b</identifier>
    <identifier type="issn">1463-9076</identifier>
    <identifier type="issn">1463-9084</identifier>
    <identifier type="urn">urn:nbn:de:kobv:b43-317331</identifier>
    <enrichment key="date_peer_review">30.10.2014</enrichment>
    <licence>Creative Commons - Namensnennung 3.0</licence>
    <author>Wojciech Szczerba</author>
    <author>M. Schott</author>
    <author>Heinrich Riesemeier</author>
    <author>Andreas Thünemann</author>
    <author>D.G. Kurth</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Metallo-supramolecular polyelectrolytes</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Electrochromism</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>XANES</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>EXAFS</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Local structure</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Thermal stability</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei für die Öffentlichkeit verfügbar ("Open Access")</collection>
    <collection role="unnumberedseries" number="">Wissenschaftliche Artikel der BAM</collection>
    <thesisPublisher>Bundesanstalt für Materialforschung und -prüfung (BAM)</thesisPublisher>
    <file>https://opus4.kobv.de/opus4-bam/files/31733/Thermally induced structural rearrangement of the Fe(II) coordination geometry in metallo-supramolecular polyelectrolytes_Szczerba.pdf</file>
  </doc>
  <doc>
    <id>22173</id>
    <completedYear/>
    <publishedYear>2010</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1967</pageFirst>
    <pageLast>1972</pageLast>
    <pageNumber/>
    <edition/>
    <issue>5</issue>
    <volume>398</volume>
    <type>article</type>
    <publisherName>Springer</publisherName>
    <publisherPlace>Berlin</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Bond length cntraction in gold nanoparticles</title>
    <abstract language="eng">The structure of nanoparticles typically differs
from its bulk counterpart. Predominantly, the structures of
gold nanoparticles have been under exceedingly intense
discussion since the discovery of their high catalytic
activity. We found an increasing bond length contraction
with decreasing particle size for citrate-stabilized gold
nanoparticles in aqueous solution as determined by in situ
extended X-ray absorption fine structure (EXAFS) spectroscopy.
Particle sizes and size distributions were determined
by small-angle X-ray scattering. The analysis of the
obtained EXAFS spectra employing ab initio calculations
reveals that the Au–Au bond length undergoes a contraction
of 2 pm for nanoparticles with a radius of 2.9 nm. NIST
reference material RM 8011 gold nanoparticles with a
radius of 4.4 nm exhibit a smaller contraction of approximately
1 pm. Finally, gold atoms in RM 8013 particles
with a radius of 25.7 nm show distances of 288 pm—
identical to the distance in gold foil—and exhibits bulk-like
properties. The observed bond length contraction of gold
nanoparticles in solution is significantly smaller than
previously reported for gold nanoparticle deposited on
surfaces, which is up to 15 pm. This indicates that the
bond length contraction effect of 'free' and 'surfaceimmobilized'
nanoparticles differ fundamentally. Such
difference could be essential for the understanding of
nanoparticle-supported catalysis.</abstract>
    <parentTitle language="eng">Analytical and bioanalytical chemistry</parentTitle>
    <identifier type="old">24676</identifier>
    <identifier type="doi">10.1007/s00216-010-4200-z</identifier>
    <identifier type="issn">1618-2642</identifier>
    <identifier type="issn">1618-2650</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <enrichment key="date_peer_review">27.10.2010</enrichment>
    <author>Wojciech Szczerba</author>
    <author>Heinrich Riesemeier</author>
    <author>Andreas Thünemann</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Small-angle X-ray scattering</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>SAXS</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>EXAFS</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>XAFS</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Nanoparticle</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Gold</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
  <doc>
    <id>38656</id>
    <completedYear/>
    <publishedYear>2016</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>820</pageFirst>
    <pageLast>824</pageLast>
    <pageNumber/>
    <edition/>
    <issue>3</issue>
    <volume>23</volume>
    <type>article</type>
    <publisherName>International Union of Crystallography</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">A setup for synchrotron-radiation-induced total reflection X-ray fluorescence and X-ray absorption near-edge structure recently commissioned at BESSY II BAMline</title>
    <abstract language="eng">An automatic sample changer chamber for total reflection X-ray fluorescence (TXRF) and X-ray absorption near-edge structure (XANES) analysis in TXRF geometry was successfully set up at the BAMline at BESSY II. TXRF and TXRF-XANES are valuable tools for elemental determination and speciation, especially where sample amounts are limited (&lt;1 mg) and concentrations are low (ng ml⁻¹ to μg ml⁻¹). TXRF requires a well defined geometry regarding the reflecting surface of a sample carrier and the synchrotron beam. The newly installed chamber allows for reliable sample positioning, remote sample changing and evacuation of the fluorescence beam path. The chamber was successfully used showing accurate determination of elemental amounts in the certified reference material NISTwater 1640. Low limits of detection of less than 100 fg absolute (10 pg ml⁻¹) for Ni were found. TXRF-XANES on different Re species was applied. An unknown species of Re was found to be Re in the +7 oxidation state.</abstract>
    <parentTitle language="eng">Journal of Synchrontron Radiation</parentTitle>
    <identifier type="doi">10.1107/S1600577516001995</identifier>
    <identifier type="issn">1600-5775</identifier>
    <enrichment key="date_peer_review">13.12.2016</enrichment>
    <author>U. Fittschen</author>
    <author>Ana de Oliveira Guilherme Buzanich</author>
    <author>S. Böttger</author>
    <author>D. Rosenberg</author>
    <author>M. Menzel</author>
    <author>W. Jensen</author>
    <author>M. Busker</author>
    <author>Z. Gotlib</author>
    <author>Martin Radtke</author>
    <author>Heinrich Riesemeier</author>
    <author>P. Wobrauschek</author>
    <author>C. Streli</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>TXRF</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>TXRF-XANES</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Sample changer</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>BAMline</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Re-XANES</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="ddc" number="620">Ingenieurwissenschaften und zugeordnete Tätigkeiten</collection>
    <collection role="literaturgattung" number="">Eigenverlag BAM</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>24386</id>
    <completedYear/>
    <publishedYear>2011</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1986</pageFirst>
    <pageLast>1989</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume>26</volume>
    <type>article</type>
    <publisherName>Royal Society of Chemistry</publisherName>
    <publisherPlace>London</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Pushing the limits for fast spatially resolved elemental distribution patterns</title>
    <abstract language="eng">A new setup for fast spatially resolved measurements of elemental trace amounts under total reflection conditions using a new colour X-ray camera is described. Samples prepared on conventional total reflection X-ray fluorescence (TXRF) reflectors were measured at BESSY II synchrotron. A spatial resolution of 50 × 50 µm² was obtained, while the required time for the investigation of a 10 × 10 mm² sample is 30 seconds. The set-up is up to 350 times faster than conventional X-ray fluorescence systems for elemental traces. The major components of the X-ray camera are polycapillary optics and a pn-CCD chip with an active area of 13 × 13 mm². This area is divided into 264 × 264 pixels of 48 × 48 µm². A full X-ray spectrum with a resolution of 152 eV @ 5.9 keV and a chip temperature of 246 K is recorded for each pixel. The chip has a read-out rate of 400 Hz.</abstract>
    <parentTitle language="eng">Journal of analytical atomic spectrometry</parentTitle>
    <identifier type="old">27050</identifier>
    <identifier type="doi">10.1039/c1ja10069f</identifier>
    <identifier type="issn">0267-9477</identifier>
    <identifier type="issn">1364-5544</identifier>
    <enrichment key="date_peer_review">28.09.2011</enrichment>
    <author>Andreas Kühn</author>
    <author>Oliver Scharf</author>
    <author>I. Ordavo</author>
    <author>Heinrich Riesemeier</author>
    <author>Uwe Reinholz</author>
    <author>Martin Radtke</author>
    <author>Achim Berger</author>
    <author>Markus Ostermann</author>
    <author>Ulrich Panne</author>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>26790</id>
    <completedYear/>
    <publishedYear>2012</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1803</pageFirst>
    <pageLast>1808</pageLast>
    <pageNumber/>
    <edition/>
    <issue>10</issue>
    <volume>27</volume>
    <type>article</type>
    <publisherName>Royal Society of Chemistry</publisherName>
    <publisherPlace>London</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Micro-X-ray absorption spectroscopy with compound refractive lenses</title>
    <abstract language="eng">A study regarding the possibility to use compound refractive lenses (CRLs) for X-ray absorption spectroscopy (XAS) was conducted. For XAS measurements the energy of the monochromatic incident beam has to be tuned over an energy range which is broader than the energy bandwidth of a CRL. To prove that µ-XAS with compound refractive lenses is possible, it had to be investigated how changes in the energy influence the beam parameters. This was done by tuning the energy around the nominal energy of the lens and recording images with a high resolution X-ray imaging setup. To investigate the changes in the spot size the scintillator was placed at the nominal focal distance and scans along the beam axis were performed. The effect on the photon flux of the incident beam due to absorption in the lens was investigated by performing XANES measurement on different reference materials with and without CRL. The results of these measurements using a CRL designed for 9 keV are shown and discussed.</abstract>
    <parentTitle language="eng">Journal of analytical atomic spectrometry</parentTitle>
    <identifier type="old">29572</identifier>
    <identifier type="doi">10.1039/c2ja30130j</identifier>
    <identifier type="issn">0267-9477</identifier>
    <identifier type="issn">1364-5544</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <enrichment key="date_peer_review">25.10.2012</enrichment>
    <author>Günter Buzanich</author>
    <author>Martin Radtke</author>
    <author>Uwe Reinholz</author>
    <author>Heinrich Riesemeier</author>
    <author>C. Streli</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Micro-XAS</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Compound refractive lens</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
  <doc>
    <id>32433</id>
    <completedYear/>
    <publishedYear>2014</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1339</pageFirst>
    <pageLast>1344</pageLast>
    <pageNumber/>
    <edition/>
    <issue>8</issue>
    <volume>29</volume>
    <type>article</type>
    <publisherName>Royal Society of Chemistry</publisherName>
    <publisherPlace>London</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Slicing - a new method for non destructive 3D elemental sensitive characterization of materials</title>
    <abstract language="eng">Recent advances in synchrotron sources and detector technology have led to substantial improvements in spatial resolution and detection limits for X-ray fluorescence analysis (XRF). However, the non-destructive three-dimensional elemental sensitive characterization of samples remains a challenge. We demonstrate the use of the so-called 'Color X-ray Camera' (CXC) for 3D measurements for the first time. The excitation of the sample is realized with a thin sheet-beam. The stepwise movement of the sample allows getting the elemental distribution for each layer with one measurement. These layers can be combined to a full 3D dataset for each element afterwards. Since the information is collected layer by layer, there is no need to apply reconstruction techniques, which quite often are the reason for artifacts in the results achieved by computed tomography (CT). The field of applications is wide, as the 3D elemental distribution of a material contains clues to processes inside the samples from a variety of origins. The technique is of special interest and well suited for biological specimens, because their light matrix minimizes restricting absorption effects. Measurement examples of a hornet and the teeth of a Sorex araneus are shown.</abstract>
    <parentTitle language="eng">Journal of analytical atomic spectrometry</parentTitle>
    <identifier type="old">35499</identifier>
    <identifier type="doi">10.1039/c4ja00085d</identifier>
    <identifier type="issn">0267-9477</identifier>
    <identifier type="issn">1364-5544</identifier>
    <identifier type="urn">urn:nbn:de:kobv:b43-324330</identifier>
    <enrichment key="date_peer_review">19.01.2015</enrichment>
    <licence>Creative Commons - Namensnennung - Nicht kommerziell 3.0</licence>
    <author>Martin Radtke</author>
    <author>Günter Buzanich</author>
    <author>Jessica Curado</author>
    <author>Uwe Reinholz</author>
    <author>Heinrich Riesemeier</author>
    <author>O. Scharf</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>SR-microXRF</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>3D</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>CXC</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei für die Öffentlichkeit verfügbar ("Open Access")</collection>
    <collection role="unnumberedseries" number="">Wissenschaftliche Artikel der BAM</collection>
    <thesisPublisher>Bundesanstalt für Materialforschung und -prüfung (BAM)</thesisPublisher>
    <file>https://opus4.kobv.de/opus4-bam/files/32433/Slicing - A New Method for Non Destructive 3D Elemental Sensitive Characterization of Materials_Radtke.pdf</file>
  </doc>
  <doc>
    <id>35815</id>
    <completedYear/>
    <publishedYear>2016</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>57</pageFirst>
    <pageLast>67</pageLast>
    <pageNumber/>
    <edition/>
    <issue>339</issue>
    <volume/>
    <type>article</type>
    <publisherName>Elsevier Inc.</publisherName>
    <publisherPlace>Philadelphia, Pennsylvania, USA</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">A combined in-situ XAS-DRIFTS study unraveling adsorbate induced changes on the Pt nanoparticle structure</title>
    <abstract language="eng">The adsorption behavior of Platinum nanoparticles was studied for the as-received catalyst (under inert gas), under hydrogen and CO atmosphere using our newly designed in-situ cell. X-ray Absorption Spectroscopy (XAS) and Diffuse Reflectance Infrared Fourier Transform Spectroscopy (DRIFTS) experiments were performed simultaneously with high data quality. Structural information and the type of adsorbate could be revealed via Extended X-ray Absorption Fine Structure (EXAFS) analysis, Dl X-ray Absorption Near Edge Structure analysis (Dl XANES) and in-situ DRIFTS. The as-received catalyst showed sub-surface oxygen and O(n-fold). Under CO atmosphere only CO(atop) was found. Reversible adsorbate induced changes of the Pt nanoparticle structure were derived from changes in the PtAPt coordination number and the corresponding bond distance. Under reducing conditions (H2, CO) a significant increase in both values occurred. Temperature dependent desorption of CO revealed a gradual shift from PtACO to PtAO. Reoxidation was clearly assigned to strong metal support interaction from the SiO2 support.</abstract>
    <parentTitle language="eng">Journal of Catalysis</parentTitle>
    <identifier type="doi">10.1016/j.jcat.2016.03.034</identifier>
    <enrichment key="date_peer_review">18.07.2016</enrichment>
    <author>C. Brieger</author>
    <author>J. Melke</author>
    <author>N. van der Bosch</author>
    <author>Uwe Reinholz</author>
    <author>Heinrich Riesemeier</author>
    <author>Ana de Oliveira Guilherme Buzanich</author>
    <author>M. Krishna Kayarkatte</author>
    <author>A. Schoeckel</author>
    <author>C. Roth</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>X-ray absorption spectroscopy</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>DRIFTS</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>XANES</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>CO adsorption</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Platinum</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Strong metal support interaction</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Silica support</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Adsorbates</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Infrared spectroscopy</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>35903</id>
    <completedYear/>
    <publishedYear>2016</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>769</pageFirst>
    <pageLast>776</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume>23</volume>
    <type>article</type>
    <publisherName>International Union of Crystallography</publisherName>
    <publisherPlace>Liverpool, UK</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Time- and spatial-resolved XAFS spectroscopy in a&#13;
single shot: new analytical possibilities for in situ&#13;
material characterization</title>
    <abstract language="eng">A new concept that comprises both time- and lateral-resolved X-ray absorption fine-structure information simultaneously in a single shot is presented. This uncomplicated set-up was tested at the BAMline at BESSY-II (Berlin, Germany). The primary broadband beam was generated by a double multilayer monochromator. The transmitted beam through the sample is diffracted by a convexly bent Si (111) crystal, producing a divergent beam. This, in turn, is collected by either an energy-sensitive area detector, the so-called color X-ray camera, or by an area-sensitive detector based on a CCD camera, in θ–2θ geometry. The first tests were performed with thin metal foils and some iron oxide mixtures. A time resolution of lower than 1 s together with a spatial resolution in one dimension of at least 50 mm is achieved.</abstract>
    <parentTitle language="eng">Journal of Synchrotron Radiation</parentTitle>
    <identifier type="doi">10.1107/S1600577516003969</identifier>
    <identifier type="url">http://scripts.iucr.org/cgi-bin/paper?S1600577516003969</identifier>
    <identifier type="issn">1600-5775</identifier>
    <enrichment key="date_peer_review">30.05.2016</enrichment>
    <author>Ana de Oliveira Guilherme Buzanich</author>
    <author>Martin Radtke</author>
    <author>Uwe Reinholz</author>
    <author>Heinrich Riesemeier</author>
    <author>Franziska Emmerling</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Single-shot XAFS</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Time resolution</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="ddc" number="620">Ingenieurwissenschaften und zugeordnete Tätigkeiten</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>37089</id>
    <completedYear/>
    <publishedYear>2016</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>769</pageFirst>
    <pageLast>776</pageLast>
    <pageNumber/>
    <edition/>
    <issue>23</issue>
    <volume/>
    <type>article</type>
    <publisherName>International Union of Crystallography</publisherName>
    <publisherPlace>Chester, UK</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Time- &amp; spatial-resolved X-ray absorption fine structure (XAFS) spectroscopy in a single-shot – new analytical possibilities for in situ material characterization</title>
    <abstract language="eng">A new concept that comprises both time- and lateral-resolved X-ray absorption fine-structure information simultaneously in a single shot is presented. This uncomplicated set-up was tested at the BAMline at BESSY-II (Berlin, Germany). The primary broadband beam was generated by a double multilayer monochromator. The transmitted beam through the sample is diffracted by a convexly bent Si (111) crystal, producing a divergent beam. This, in turn, is collected by either an energy-sensitive area detector, the so-called color X-ray camera, or by an area-sensitive detector based on a CCD camera, in θ-2θ geometry. The first tests were performed with thin metal foils and some iron oxide mixtures. A time resolution of lower than 1 s together with a spatial resolution in one dimension of at least 50 µm is achieved.</abstract>
    <parentTitle language="eng">Journal of Synchrotron Radiation</parentTitle>
    <identifier type="doi">10.1107/S1600577516003969</identifier>
    <identifier type="issn">1600-5775</identifier>
    <identifier type="urn">urn:nbn:de:kobv:b43-370892</identifier>
    <licence>Creative Commons - Namensnennung 3.0</licence>
    <author>Ana de Oliveira Guilherme Buzanich</author>
    <author>Martin Radtke</author>
    <author>Uwe Reinholz</author>
    <author>Heinrich Riesemeier</author>
    <author>Franziska Emmerling</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Time resolution</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Single-shot XAFS</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="ddc" number="620">Ingenieurwissenschaften und zugeordnete Tätigkeiten</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei für die Öffentlichkeit verfügbar ("Open Access")</collection>
    <collection role="unnumberedseries" number="">Wissenschaftliche Artikel der BAM</collection>
    <thesisPublisher>Bundesanstalt für Materialforschung und -prüfung (BAM)</thesisPublisher>
    <file>https://opus4.kobv.de/opus4-bam/files/37089/jsy2rv5048_Time and spatial resolved XAFS spectroscopy_2016.pdf</file>
  </doc>
  <doc>
    <id>26105</id>
    <completedYear/>
    <publishedYear>2012</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>557</pageFirst>
    <pageLast>563</pageLast>
    <pageNumber/>
    <edition/>
    <issue>3</issue>
    <volume>358</volume>
    <type>article</type>
    <publisherName>North-Holland Publ. Co.</publisherName>
    <publisherPlace>Amsterdam</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Silica dispersion in styrene butadiene rubber composites studied by synchrotron tomography</title>
    <abstract language="eng">By means of synchrotron X-ray computed tomography, model composites consisting of silica and styrenebutadiene rubber were studied with a very high spatial resolution. By our analysis technique we were able to determine the nano- and micro dispersion from the experimental results by our numerical analysis. These results are discussed with respect to crucial advantages of the generically 3-dimensional tomography technique as compared to 2-dimensional methods. Our quantitative analysis of the 3d images demonstrates that in the case of our model composites the filler dispersion is good, independent on the filler concentration. Our new 3-dimensional results evidence that considering only 2-d pictures may lead to ambiguities that can lead to wrong conclusions.</abstract>
    <parentTitle language="eng">Journal of non-crystalline solids</parentTitle>
    <identifier type="old">28850</identifier>
    <identifier type="doi">10.1016/j.jnoncrysol.2011.10.009</identifier>
    <identifier type="issn">0022-3093</identifier>
    <enrichment key="date_peer_review">28.06.2012</enrichment>
    <author>K. Nusser</author>
    <author>T. Mosbauer</author>
    <author>G. J. Schneider</author>
    <author>K. Brandt</author>
    <author>Gerd Weidemann</author>
    <author>Jürgen Goebbels</author>
    <author>Heinrich Riesemeier</author>
    <author>D. Göritz</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>X-ray tomography</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Silica</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Styrene butadiene rubber</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Dispersion</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>38370</id>
    <completedYear/>
    <publishedYear>2016</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>769</pageFirst>
    <pageLast>776</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume>23</volume>
    <type>article</type>
    <publisherName>International Union of Crystallography</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Time- and spatial-resolved X-ray absorption fine structure (XAFS) spectroscopy in a single-shot: new analytical possibilities for in situ material characterization</title>
    <abstract language="eng">A new concept that comprises both time- and lateral-resolved X-ray absorption fine-structure information simultaneously in a single shot is presented. This uncomplicated set-up was tested at the BAMline at BESSY-II (Berlin, Germany). The primary broadband beam was generated by a double multilayer monochromator. The transmitted beam through the sample is diffracted by a convexly bent Si (111) crystal, producing a divergent beam. This, in turn, is collected by either an energy-sensitive area detector, the so-called color X-ray camera, or by an area-sensitive detector based on a CCD camera, in θ-2θ geometry. The first tests were performed with thin metal foils and some iron oxide mixtures. A time resolution of lower than 1 s together with a spatial resolution in one dimension of at least 50 µm is achieved.</abstract>
    <parentTitle language="eng">Journal of Synchrotron Radiation</parentTitle>
    <identifier type="doi">10.1107/S1600577516003969</identifier>
    <identifier type="issn">1600-5775</identifier>
    <author>Ana de Oliveira Guilherme Buzanich</author>
    <author>Martin Radtke</author>
    <author>Uwe Reinholz</author>
    <author>Heinrich Riesemeier</author>
    <author>Franziska Emmerling</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Single-shot XAFS</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Time resolution</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Spatial resolution</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Divergent XAFS</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="literaturgattung" number="">Eigenverlag BAM</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>21223</id>
    <completedYear/>
    <publishedYear>2010</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>5889</pageFirst>
    <pageLast>5894</pageLast>
    <pageNumber/>
    <edition/>
    <issue>8</issue>
    <volume>26</volume>
    <type>article</type>
    <publisherName>American Chemical Society</publisherName>
    <publisherPlace>Washington, DC</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Real-time monitoring of copolymer stabilized growing gold nanoparticles</title>
    <abstract language="eng">A great challenge in the production of nanoparticles with defined sizes and properties is to control their growth in situ. We developed a dedicated combined small-angle X-ray scattering (SAXS) and X-ray absorption spectroscopy (XAS) setup to monitor nanoparticle formation in solution. The capabilities of simultaneously deriving particle sizes and oxidation states of atoms/ions are illustrated for the formation of spherical gold nanoparticles by the reduction of hydrogen tetrachloroaureate (HAuCl4). Particles with initial radii of 4.60 ± 0.10 nm and final radii of 5.67 ± 0.10 nm were produced in a levitated droplet with a volume of 4 µL. An ethylene oxide/propylene oxide triblock copolymer PEO-PPO-PEO (Pluronic F-127) functions as reducing agent and colloidal stabilizer. XANES shows in situ how the gold was reduced in the droplet from Au(III) to Au(0), and simultaneously SAXS recorded the size distribution of the formed nanoparticles. It is shown that the final particle number is reached quickly. Thereafter, only the particles sizes increase. Comparison of XANES and SAXS shows that the quantity of Au(0) is higher than the quantity of gold located in the nanoparticles while the particles are growing. Finally, all the Au(0) is found in the nanoparticles. We tentatively attribute this finding to the pseudo crown ether effect of the polymer surfactant that kinetically stabilizes gold atoms when formed from gold ions within their protecting cavity. A simple burst mechanism for the gold nanoparticle formation is the consequence. The possibility of an inhomogeneous particles structure with an enhanced density near the particle surface is discussed.</abstract>
    <parentTitle language="eng">Langmuir</parentTitle>
    <identifier type="old">23620</identifier>
    <identifier type="doi">10.1021/la903829q</identifier>
    <identifier type="issn">0743-7463</identifier>
    <identifier type="issn">1520-5827</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <enrichment key="date_peer_review">06.05.2010</enrichment>
    <author>Jörg Polte</author>
    <author>Franziska Emmerling</author>
    <author>Martin Radtke</author>
    <author>Uwe Reinholz</author>
    <author>Heinrich Riesemeier</author>
    <author>Andreas Thünemann</author>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
  <doc>
    <id>15049</id>
    <completedYear/>
    <publishedYear>2007</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>s466</pageFirst>
    <pageLast>s470</pageLast>
    <pageNumber/>
    <edition/>
    <issue>Supplement</issue>
    <volume>40</volume>
    <type>article</type>
    <publisherName>Blackwell</publisherName>
    <publisherPlace>Oxford</publisherPlace>
    <creatingCorporation>International Union of Crystallography</creatingCorporation>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">A new experimental station for simultaneous X-ray microbeam scanning for small- and wide-angle scattering and fluorescence at BESSY II</title>
    <abstract language="eng">A new instrument for simultaneous microbeam small- and wide-angle X-ray scattering and X-ray fluorescence (SAXS/WAXS/XRF) is presented. The instrument is installed at the microfocus beamline at BESSY II and provides a beam of 10 µm size with a flux of about 109 photons s-1. A SAXS resolution up to 500 Å d-spacing and a range of scattering vectors of almost three orders of magnitude are reached by using a large-area high-resolution CCD-based detector for simultaneous SAXS/WAXS. The instrument is particularly suited for scanning SAXS/WAXS/XRF experiments on hierarchically structured biological tissues. The necessary infrastructure, such as a cryo-stream facility and an on-site preparation laboratory for biological specimens, are available.</abstract>
    <parentTitle language="eng">Journal of applied crystallography</parentTitle>
    <identifier type="old">16902</identifier>
    <identifier type="issn">0021-8898</identifier>
    <identifier type="issn">1600-5767</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <enrichment key="date_peer_review">16.07.2007</enrichment>
    <author>O. Paris</author>
    <author>C. Li</author>
    <author>S. Siegel</author>
    <author>G. Weseloh</author>
    <author>Franziska Emmerling</author>
    <author>Heinrich Riesemeier</author>
    <author>A. Erko</author>
    <author>P. Fratzl</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Scanning SAXS</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Scanning WAXS</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Microbeam</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Synchrotron radiation</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
  <doc>
    <id>22684</id>
    <completedYear/>
    <publishedYear>2010</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>012051-1 - 012051-10</pageFirst>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue>1</issue>
    <volume>247</volume>
    <type>article</type>
    <publisherName>IOP Publ.</publisherName>
    <publisherPlace>Bristol, UK</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">New insights of the nucleation and growth process of gold nanoparticles via in situ coupling of SAXS and XANES</title>
    <abstract language="eng">Although metallic nanoparticles play an important role in the area of nanotechnology, a coherent mechanistic explanation for the evolution of the particles during their chemical synthesis has not yet been provided in many cases. To gain a profound understanding of the growth mechanism of colloidal nanoparticles, new approaches using Small Angle X-Ray Scattering (SAXS) combined with X-ray absorption near-edge structure (XANES) are presented. This combination allows for insights into two prominent syntheses routes of gold nanoparticles (GNP): The 'slow' reaction using sodium citrate (30-90 min) as a reducing agent and the 'fast' reaction employing NaBH4 (within few seconds). In the first case data derived with the coupled XANES and SAXS suggests a four-step particle formation mechanism. For the second system a time resolution in the order of 100-200 ms was achieved by coupling a common laboratory SAXS instrument with a microstructured mixer, which allows data acquisition in a continuous-flow mode. The results indicate a coalescence driven growth process. Based on the capabilities to deduce the size, number and polydispersity of the particles, the results of both methods enable the development of mechanistic schemes explaining the different phases of particle formation and growth, thus providing a basis for improved control over the synthesis processes.</abstract>
    <parentTitle language="eng">Journal of physics / Conference series</parentTitle>
    <identifier type="old">25232</identifier>
    <identifier type="doi">10.1088/1742-6596/247/1/012051</identifier>
    <identifier type="issn">1742-6588</identifier>
    <identifier type="issn">1742-6596</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <enrichment key="zsBemerkung">Die Aufnahme ist grundsätzlich falsch, da es sich trotz des Titels ("Journal of physics / Conference series") nicht um eine Zeitschrift handelt, sondern um eine Tagungsband-Reihe. Da sehr viele Artikel an diesem Eintrag hängen, wäre die Korrektur aber extrem aufwändig.  Die Tagungsband-Reihe findet sich in der Master Journal List bzw. in dem Journal Citation Report selbstverständlich nicht wieder, da es ja keine Zeitschrift ist. Allerdings wird die Tagungsband-Reihe sehr wohl von Thomson-Reuters für Ihre Datenbank ausgewertet, als "Book Series". Daher muss sichergestellt werden, dass die dort erscheinenden Artikel auch für die "1000-Euro-Liste" berücksichtigt werden.  Die einfachste Lösung ist es, den Eintrag als Zeitschrift zu belassen, und das Häkchen bei "In MJL/CPCI von ISI enthalten" zu setzen. Das ist zwar formal nicht ganz korrekt, erzeugt aber das richtige Ergebnis.  Jan Harloff-Puhr 11.7.2014</enrichment>
    <enrichment key="date_peer_review">09.12.2010</enrichment>
    <author>Jörg Polte</author>
    <author>R. Kraehnert</author>
    <author>Martin Radtke</author>
    <author>Uwe Reinholz</author>
    <author>Heinrich Riesemeier</author>
    <author>Andreas Thünemann</author>
    <author>Franziska Emmerling</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>SAXS</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>XANES</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Nanoparticle formation</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
</export-example>
