TY - CONF A1 - Szczerba, Wojciech A1 - Riesemeier, Heinrich A1 - Radtke, Martin A1 - Reinholz, Uwe A1 - Thünemann, Andreas T1 - Combined small angle x-ray scattering and x-ray absorption spectroscopy studies of electrochrome metallopolyelectrolytes T2 - 11th International School and Symposium on Synchrotron Radiation in Natural Science CY - Kraków, Poland DA - 2012-05-20 PY - 2012 AN - OPUS4-25882 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kühn, Andreas A1 - Scharf, Oliver A1 - Ordavo, I. A1 - Riesemeier, Heinrich A1 - Reinholz, Uwe A1 - Radtke, Martin A1 - Ostermann, Markus A1 - Berger, Achim A1 - Panne, Ulrich T1 - Schnelle ortsaufgelöste Messung von Elementverteilungen mit Röntgenfluoreszenz T2 - 3rd Joint HZB BER II and BESSY // Users´ Meeting CY - Berlin, Germany DA - 2011-11-30 PY - 2011 AN - OPUS4-24983 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Reinholz, Uwe A1 - Buzanich, Günter A1 - Emmerling, Franziska A1 - Gnutzmann, Tanja A1 - Lingott, Jana A1 - Radtke, Martin A1 - Rolf, Simone A1 - Schlegel, Moritz-Caspar T1 - Facettenreiche Forschung an der BAMline T2 - Lange Nacht der Wissenschaften 2012 CY - Berlin, Germany DA - 2012-06-02 PY - 2012 AN - OPUS4-25943 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Radtke, Martin T1 - The Color X-Ray Camera: Basics, Applications and Perspectives T2 - Third Joint BER II and BESSY II Users´ Meeting CY - Berlin, Germany DA - 2011-11-30 PY - 2011 AN - OPUS4-25127 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Radtke, Martin T1 - Materialforschung an der BAMline T2 - DGM-Fachausschuss Werkstoffcharakterisierung mit Strahllinien CY - Berlin, Germany DA - 2011-05-27 PY - 2011 AN - OPUS4-24026 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Constantinescu, B. A1 - Vasilescu, A. A1 - Radtke, Martin A1 - Reinholz, Uwe T1 - Micro-SR-XRF Studies for Archaeoligical Gold Identification - The Case of Carpathian Gold and of Dacian Bracelets T2 - "NUPPAC´09", 7th Conference on Nuclear and Particle Physics CY - Sharm el-Sheikh, Egypt DA - 2009-11-11 PY - 2009 AN - OPUS4-20776 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Buzanich, Günter A1 - Riesemeier, Heinrich A1 - Radtke, Martin A1 - Reinholz, Uwe A1 - Kaden, T. A1 - Kreßner-Kiel, D. T1 - µ-XRF and µ-XANES, tools for the analysis of metallic impurities in photovoltaic polycrystalline silicon T2 - European Conference on X-ray Spectrometry CY - Figueira da Foz, Portugal DA - 2010-06-20 PY - 2010 AN - OPUS4-21203 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Grunewald, C. A1 - Radtke, Martin A1 - Reinholz, Uwe A1 - Riesemeier, Heinrich T1 - Sy-RFA Messungen annicht ebenen Objekten: Automatische Bestimmung des Einfallswinkels des anregenden Röntgenstrahls T2 - Deutsche Tagung für Forschung mit Synchrotronstrahlung, Neutronen und Ionenstrahlen, SNI 2010 CY - Berlin, Germany DA - 2010-02-24 PY - 2010 AN - OPUS4-20098 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Radtke, Martin A1 - Scharf, Oliver A1 - Reinholz, Uwe A1 - Buzanich, Günter A1 - Riesemeier, Heinrich A1 - Langhoff, N. A1 - Gubzhokov, R. A1 - Bjeoumikova, S. A1 - Wedell, R. A1 - Ihle, S. A1 - Soltau, H. T1 - X-ray camera with high energy and spital resolution: Sterography with a colour X-ray camera T2 - European Conference on X-ray Spectrometry CY - Figueira da Foz, Portugal DA - 2010-06-20 PY - 2010 AN - OPUS4-21205 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Buzanich, Günter A1 - Radtke, Martin A1 - Reinholz, Uwe A1 - Riesemeier, Heinrich T1 - XBIC, µRFA und µXANES an metallischen Verunreinigungen in polykristallinem Solarsilicium T2 - Deutsche Tagung für Forschung mit Synchrotronstrahlung, Neutronen und Ionenstrahlen, SNI 2010 CY - Berlin, Germany DA - 2010-02-24 PY - 2010 AN - OPUS4-20122 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Behrendt, S. A1 - Paz, B. A1 - Radtke, Martin A1 - Reinholz, Uwe A1 - Franz, A. A1 - Böhme, D. T1 - Archäometrische Untersuchungen an Stuckartefakten zur Klärung von Alter, Herkunft und Authentizität T2 - Mu Tec, Internationale Fachmesse für Museums- und Ausstelltechnik CY - Leipzig, Germany DA - 2010-11-18 PY - 2010 AN - OPUS4-22008 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Szczerba, Wojciech A1 - Radtke, Martin A1 - Reinholz, Uwe A1 - Riesemeier, Heinrich A1 - Thünemann, Andreas A1 - Fenger, R. L. A1 - Rademann, K. T1 - XAFS on CTAB stabilized gold nanoparticles T2 - 10th International School and Symposium on Synchrotron Radiation in Natural Science ISSRNS 2010 CY - Szklarska Poreba, Poland DA - 2010-06-06 PY - 2010 AN - OPUS4-21200 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Scharf, Oliver A1 - Radtke, Martin A1 - Reinholz, Uwe A1 - Riesemeier, Heinrich A1 - Bjeoumikova, S. A1 - Gubzhokov, R. A1 - Langhoff, N. A1 - Wedell, R. A1 - Ihle, S. T1 - X-ray camera with high energy and spatial resolution: a colour X-ray camera T2 - European Conference on X-ray Spectrometry CY - Figueira da Foz, Portugal DA - 2010-06-20 PY - 2010 AN - OPUS4-21198 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Reuter, Dirk A1 - Radtke, Martin A1 - Vincze, L. A1 - Reinholz, Uwe A1 - Riesemeier, Heinrich A1 - Hodoroaba, Vasile-Dan T1 - Modelling of X-Ray Scattering for improved X-Ray Fluoescence Analysis - Monochromatic Excitation T2 - European Conference on X-Ray Spectrometry CY - Figueira da Foz, Portugal DA - 2010-06-20 PY - 2010 AN - OPUS4-21159 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Polte, Jörg A1 - Emmerling, Franziska A1 - Radtke, Martin A1 - Reinholz, Uwe A1 - Riesemeier, Heinrich A1 - Thünemann, Andreas T1 - Small Angle X-ray Scattering as universial tool for nucleation and growth studies T2 - GENNESYS International Congress on Nanotechnology and Research Infrastructure CY - Barcelona, Spain DA - 2010-05-26 PY - 2010 AN - OPUS4-21323 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Radtke, Martin A1 - Reinholz, Uwe A1 - Riesemeier, Heinrich A1 - Cabral, A. R. A1 - Lehmann, B. A1 - Munnik, F. T1 - Spatially-resolved detection of iodine in natural plantinum-palladium nuggets: a comparison of PIXE and XRF T2 - European Conference on X-ray Spectrometry CY - Figueira da Foz, Portugal DA - 2010-06-20 PY - 2010 AN - OPUS4-21073 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Radtke, Martin A1 - Reinholz, Uwe A1 - Riesemeier, Heinrich A1 - Munnik, F. A1 - Lehmann, B. A1 - Cabral, A. R. T1 - Spatially-resolved detection of iodine in natural platinum-palladium nuggets: a comparison of PIXE and XRF T2 - European Conference on X-ray Spectrometry CY - Figueira da Foz, Portugal DA - 2010-06-20 PY - 2010 AN - OPUS4-21201 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Zier, M. A1 - Reinholz, Uwe A1 - Riesemeier, Heinrich A1 - Radtke, Martin A1 - Munnik, F. A1 - Möller, W. T1 - Ions and X-rays: Unique Partners for Accurate Stopping Power Determination of 15N Ions in Si for Hydrogen Depth Profiling T2 - Deutsche Tagung für Forschung mit Synchrotronstrahlung, Neutronen und Ionenstrahlen, SNI 2010 CY - Berlin, Germany DA - 2010-02-24 PY - 2010 AN - OPUS4-20099 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Reuter, Dirk A1 - Radtke, Martin A1 - Hodoroaba, Vasile-Dan A1 - Vincze, L. T1 - Modelling of X-Ray Scattering for improved X-Ray Fluorescence Analysis - X-Ray Tube Excitation T2 - European Conference on X-Ray Spectrometry CY - Figueira da Foz, Portugal DA - 2010-06-20 PY - 2010 AN - OPUS4-23065 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Munnik, F. A1 - Cabral, A. R. A1 - Lehmann, B. A1 - Radtke, Martin A1 - Reinholz, Uwe A1 - Riesemeier, Heinrich T1 - Iodine detection in a heavy matrix, a comparison of PIXE and XRF T2 - 12th International Conference on Nuclear Microprobe Technology and Applications CY - Leipzig, Germany DA - 2010-07-26 PY - 2010 AN - OPUS4-21035 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Grunewald, Christian A1 - Radtke, Martin A1 - Reinholz, Uwe A1 - Riesemeier, Heinrich T1 - SRXRF-measurements at non planar objects: Automatic determination of the angle of incidence of the exciting X-ray T2 - BESSY User Meeting CY - Berlin, Germany DA - 2010-12-09 PY - 2010 AN - OPUS4-22832 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Zier, M. A1 - Reinholz, Uwe A1 - Riesemeier, Heinrich A1 - Radtke, Martin A1 - Munnik, F. T1 - Ions and X-rays: Unique partners for accurate stopping power determination of 15N ions in Si for hydrogen depth profiling T2 - Workshop Ionenstrahlphysik CY - Dresden, Germany DA - 2010-03-29 PY - 2010 AN - OPUS4-20920 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Buzanich, Günter A1 - Radtke, Martin A1 - Reinholz, Uwe A1 - Riesemeier, Heinrich T1 - PART - An X-Ray Spectrometer for special applications in Cultural Heritage T2 - Seminarvortrag, Universität Lissabon, Falkultät für Physik CY - Lisbon, Portugal DA - 2010-06-30 PY - 2010 AN - OPUS4-21406 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rodrigues, M. A1 - Schreiner, M. A1 - Melcher, M. A1 - Guerra, M. A1 - Alram, M. A1 - Schindel, N. A1 - Salomon, J. A1 - Radtke, Martin T1 - Analysis of the Hoard of Beçin using X-ray based techniques T2 - European Conference on X-Ray Spectrometry CY - Figueira da Foz, Portugal DA - 2010-06-20 PY - 2010 AN - OPUS4-23262 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Radtke, Martin A1 - Reinholz, Uwe A1 - Riesemeier, Heinrich T1 - Characterization of precious metal objects with SRXRF at the Bamline T2 - Synchrotron Radiation in Art & Archaeology (SR2A-2010) CY - Amsterdam, Netherlands DA - 2010-11-07 PY - 2010 AN - OPUS4-21244 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Radtke, Martin A1 - Reinholz, Uwe A1 - Strub, E. A1 - Born, H. T1 - Neues vom Berliner Goldhut: Analyse mit Sy-RFA T2 - Deutsche Tagung für Forschung mit Synchrotronstrahlung, Neutronen und Ionenstrahlen, SNI 2010 CY - Berlin, Germany DA - 2010-02-24 PY - 2010 AN - OPUS4-20097 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Behrendt, S. A1 - Paz, B. A1 - Radtke, Martin A1 - Reinholz, Uwe A1 - Franz, A. A1 - Böhme, D. T1 - Archäometrische Untersuchungen an Stuckartefakten zur Klärung von Alter, Herkunft und Authentizität T2 - Tagung Archäometrie und Denkmalpflege CY - Bochum, Germany DA - 2010-09-15 PY - 2010 AN - OPUS4-22009 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Radtke, Martin T1 - Röntgenfluoreszenzanalyse mit Synchrotronstrahlung an der Bundesanstalt für Materialforschung und -prüfung (BAM), Berlin T2 - Seminar: "Strahlenphysikalische Anwendungen in Technik und Medizin" CY - Vienna, Austria DA - 2011-01-19 PY - 2011 AN - OPUS4-23265 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Scharf, Oliver A1 - Riesemeier, Heinrich A1 - Radtke, Martin A1 - Reinholz, Uwe T1 - First images of a color X-ray camera, a detector with high resolution in energy and space T2 - DESY CY - Hamburg, Germany DA - 2010-10-06 PY - 2010 AN - OPUS4-22035 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Buzanich, Günter A1 - Radtke, Martin A1 - Reinholz, Uwe A1 - Riesemeier, Heinrich T1 - PART - An X-Ray Spectrometer for special applications in Cultural Heritage T2 - EXPRS 2010 CY - Figueira da Foz, Portugal DA - 2010-06-20 PY - 2010 AN - OPUS4-21407 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Radtke, Martin T1 - Von der Bronzezeit ins 21. Jahrhundert - Materialcharakterisierung mit SyXRF an der BAMline T2 - 17. Sitzung des Fachausschusses Zerstörungsfreie Materialcharakterisierung, DGZFP CY - Berlin, Germany DA - 2009-11-10 PY - 2009 AN - OPUS4-20772 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Radtke, Martin A1 - Eilbracht, H. A1 - Armbruster, B. A1 - Reichen, I. T1 - Das Hiddensee-Projekt T2 - Kulturgut durchleutet - Strahlung trifft Kulturgut (Symposium) CY - Berlin, Germany DA - 2009-11-04 PY - 2009 AN - OPUS4-20771 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Scharf, O. A1 - Bjeoumikova, S. A1 - Gubzhokov, Renat A1 - Radtke, Martin A1 - Reinholz, Uwe A1 - Riesemeier, Heinrich A1 - Wedell, R. A1 - Soltau, H. A1 - Ihle, S. T1 - An energy and spatial resolving X-Ray camera T2 - Technart 2011 CY - Berlin, Germany DA - 2011-04-26 PY - 2011 AN - OPUS4-23079 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Reinholz, Uwe A1 - Buzanich, Günter A1 - Grunewald, Christian A1 - Emmerling, Franziska A1 - Radtke, Martin A1 - Scharf, Oliver T1 - Archäometrie an der BAMline T2 - Lange Nacht der Wissenschaften, BAM, BESSY II CY - Berlin, Germany DA - 2010-06-05 PY - 2010 AN - OPUS4-21379 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Radtke, Martin T1 - XRF using synchrotron radiation T2 - Vienna summer school 2010 "Radiation physics in cultural heritage studies" CY - Vienna, Austria DA - 2010-09-21 PY - 2010 AN - OPUS4-23263 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Scharf, O. A1 - Reinholz, Uwe A1 - Radtke, Martin A1 - Riesemeier, Heinrich A1 - Buzanich, Günter A1 - Bjeoumikova, S. A1 - Gubzhokov, R. A1 - Langhoff, N. A1 - Soltau, H. A1 - Wedell, R. A1 - Ordavo, I. T1 - A novel device for elemental distribution imaging: A color X-Ray Camera T2 - Jahrestagung der Deutschen Gesellschaft für Biomaterialien (DGBM) CY - Giessen, Germany DA - 2011-11-01 PY - 2011 AN - OPUS4-23974 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - George, Janine T1 - Automated quantum-chemical bonding analysis with workflow tools N2 - Bonds and local atomic environments are crucial descriptors of material properties. They have been used to create design rules and heuristics and as features in machine learning of materials properties. Implementations and algorithms (e.g., ChemEnv and LobsterEnv) for identifying local atomic environments based on geometrical characteristics and quantum-chemical bonding analysis are nowadays available. Fully automatic workflows and analysis tools have been developed to use quantum-chemical bonding analysis on a large scale. The lecture will demonstrate how our tools, that assess local atomic environments and perform automatic bonding analysis, help to develop new machine learning models and a new intuitive understanding of materials. Furthermore, other recent workflow contributions to the Materials Project software infrastructure (pymatgen, atomate2) related to phonons and machine-learning potentials will be discussed. T2 - ADIS Workshop 2023 CY - Tegernsee, Germany DA - 29.10.2023 KW - Automation KW - Materials Properties KW - DFT KW - Workflows KW - Machine Learning KW - Thermodynamic Properties PY - 2023 AN - OPUS4-58745 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - George, Janine T1 - Data-driven chemical understanding with bonding analysis N2 - Bonds and local atomic environments are crucial descriptors of material properties. They have been used to create design rules and heuristics and as features in machine learning of materials properties. Implementations and algorithms (e.g., ChemEnv and LobsterEnv) for identifying local atomic environments based on geometrical characteristics and quantum-chemical bonding analysis are nowadays available. Fully automatic workflows and analysis tools have been developed to use quantum-chemical bonding analysis on a large scale. The lecture will demonstrate how our tools, that assess local atomic environments and perform automatic bonding analysis, help to develop new machine learning models and a new intuitive understanding of materials.[5,6] Furthermore, the general trend toward automation in density functional-based materials science and some of our recent contributions will be discussed. T2 - Seminar of the Department of Chemistry at Imperial College London CY - Online meeting DA - 20.02.2024 KW - Automation KW - Magnetism KW - Bonding Analysis KW - Machine Learning PY - 2024 AN - OPUS4-59546 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bustamante Pineda, Joana Cecibel A1 - George, Janine T1 - Sulfide-Argyrodites: Thermal properties within the QHA N2 - Argyrodite-type materials have lately sparked a lot of research interest due to their thermoelectric properties. One promising candidate is canfieldite (Ag8SnS6), which has a Pna21 orthorhombic crystal structure at room temperature (RT). Recently, experimentalists have found a new low-temperature (LT) phase transition of canfieldite at 120K. Therefore, we investigate structural, vibrational and thermodynamic properties of Ag8SnS6 at room- and low-temperature employing density-functional theory (DFT) and lattice dynamics computations. Thermal properties calculations were based on the quasi-harmonic approximation (QHA) as implemented in phonopy. We achieve good agreement with experiments. Lattice parameters were overestimated by 2%, and thermal properties such as the constant-pressure heat capacity Cp are very close to experimental measurements. Our simulations also reveal a possible new phase transition at around 312 K. Furthermore, we compared RT and LT Ag8SnS6 Grüneisen parameters with some argyrodites analogues, Ag8TQ6 (T = Si, Ge, Ti and Sn; Q = S, Se), finding a relationship between the anharmonicity and low thermal conductivity. T2 - SALSA Make and Measure Conference CY - Berlin, Germany DA - 13.09.2023 KW - Thermoelectric materials KW - DFT KW - QHA KW - Grüneisen parameter PY - 2023 AN - OPUS4-58368 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Radtke, Martin T1 - Von Ägypten bis Hiddensee Analyse von Gold mit Synchrotronstrahlung III N2 - Gold ist eines der sieben schon im Altertum bekannten Metalle und wurde wg. seines Glanzes und seiner Seltenheit von alters her als Tauschmittel und zur Herstellung von Schmuck benutzt. Außerdem ist es einfach bearbeitbar und weitestgehend gegen chemische Einflüsse resistent. Die Untersuchungen von Gold mit synchrotronstrahlungsangeregter Röntgenfluoreszenzanalyse sind zerstörungsfrei und geben Auskunft über die in der untersuchten Probe vorhandenen chemischen Elemente. Bei den hier vorgestellten Untersuchungen an der BAMline stehen Fragestellungen wie Herkunft, Herstellungsverfahren und Zusammengehörigkeit von Goldfunden im Vordergrund. Die verschiedenen Fragestellungen werden an einer Reihe von Beispielen erläutert die vom Wikingerschatz aus Hiddensee über die Himmelsscheibe von Nebra bis hin zu Funden aus Ägypten langen. Der Fund von Bernstorf wird ausführlich diskutiert. T2 - Vorlesung FU Berlin Einführung in die Archäometrie CY - Berlin, Germany DA - 06.11.2020 KW - Synchrotron KW - BAMline KW - XRF KW - Gold KW - Archäometrie PY - 2020 AN - OPUS4-51893 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Fittschen, U. A1 - Lutz, C. A1 - Beuermann, S. A1 - Turek, T. A1 - Kunz, U. A1 - de Oliveira Guilherme Buzanich, Ana A1 - Radtke, Martin T1 - Element Species Determination in Polymer Electrolyte Membranes N2 - Polymer electrolyte membranes (PEM) are polymers which act as separator in an electrochemical cell and allow ionic charge flow to close the circuit. Widely used membranes are perfluorinated sulfonic-acid (PFSA) ionomers (e.g. Nafion™), a class of ion-conducting polymers with remarkable ion conductivity and chemical-mechanical stability. A nanoscopic water system around the sulfonic acid capped side-chains of the otherwise hydrophobic polymer allows the ion transport. Only approx. 14 molecules of water per sulfonic group are present in the fully hydrated state. In vanadium redox flow batteries (VRFB) ideally only protons are transported. The weak ion selectivity of Nafion™ is the main cause for the transportation of vanadium, briefly vanadium crossover, in VRFBs a system we have investigated more closely, lately. The consequences of crossover are a concentration imbalance and a self-discharge of the battery, which leads to a decrease of the capacity. The development of efficient energy storage systems is crucial for the transformation towards a renewable energy based economy. The VRFB has a great potential as a commercial electrochemical energy storage system due to properties including, but not limited to, no cross-contamination, a long cycle-life and a theoretically unlimited capacity. VRFB consists of two half-cells, which are linked to electrolyte tanks and separated by a membrane. The membrane plays a major role in overall cell performance. So far, vanadium transportation models, which include diffusion, migration, electroosmotic convection and pressure gradients, are inconsistent. There is no agreement in the literature on the diffusion coefficients of vanadium species (e.g. published diffusion coefficients of V2+ are located between 3.13·10-12 m²s-1 and 9.44·10-12 m²s-1) indicate that thevanadium crossover is not well understood and there is a lack on a more fundamental level. Since the membrane transport is the rate-determining step of the crossover as well as of the proton exchange it is extremely important to understand these phenomena on a fundamental level. This will eventually allow us to design better membranes. Alternative materials need to show equivalent performance compared with Nafion™ and ideally be more selective regarding ion cross-membrane transport.There are several options to approach the chemistry i.e. the interaction of dissolved and bound ions inside the confined water body of ionomeric membranes. Vanadium ions are a versatile model as UV/VIS data can be used to distinguish between the 5 species V2+, V3+, VO2+, VO2+ and V2O33+ of the electrolyte. Infrared spectroscopy has been applied to study the interaction of sulfonic groups and the ions. Molecular dynamic modeling is another approach to study the distribution and distances of ions. We now introduce X-ray absorption near edge structure spectroscopy (XANES) to study species and species changes inside Nafion™ and a novel membrane based on poly(1,1-difluoroethylene) (PVDF). We evaluated the methods and investigated the influence of irradiation, temperature and hydration on the measurements. T2 - Denver X-Ray Conference CY - Online meeting DA - 03.08.2020 KW - Batteries KW - BAMline KW - XANES PY - 2020 AN - OPUS4-51910 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Lutz, C. A1 - Beuermann, S. A1 - Turek, T. A1 - Kunz, U. A1 - de Oliveira Guilherme Buzanich, Ana A1 - Radtke, Martin A1 - Fittschen, U. T1 - Investigation on Vanadium Crossover in Nafion ™ and Novel PVDF Based Membranes for Vanadium Redox Flow Batteries N2 - Vanadium redoxflow batteries (VRFB)are currently one of the most promising candidates for stationary energys torage.For large scale applications the ion conducting membranes currently in use need to be improved. Ideally,they need to become more cost efficient and selective regarding the vanadium crossover.For a better understanding of the vanadium crossover, the development of reliable analytical methods and procedures, that elucidate uptake and transport of vanadium ions in the membrane, is necessary. First, we present the uptake of V2+,V3+,VO2+, VO2+ and V2O33+ in Nafion™ and in a novel membrane based onpoly(1,1-difluoroethylene)(PVDF). In preliminary discharge/charge experiments the ETFE-based membrane, the precursor of PVDF-based membrane, performed comparable to Nafion™. The methods of choice for speciation are UV/Vis and X-ray absorption near edge structure spectroscopy (XANES). According to the results, V2O33+, formed from VO2+ and VO2+, diffuses also into the membrane. In present models, the diffusion of V2O33+ is neglected. In addition,we study whether reactions could take place inside the membranes’ nanoscopic water body using XANES. Exposing Nafion™ from one site with V3+a nd from the other site with VO2+ realized the experiment. The results verified that VO2+ was formed inside the membrane. However,in present models reactions inside the membrane are neglected, too. T2 - Denver X-Ray Conference CY - Online meeting DA - 03.08.2020 KW - Batteries KW - BAMline KW - XANES KW - VRF PY - 2020 AN - OPUS4-51909 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kulow, Anicó A1 - de Oliveira Guilherme Buzanich, Ana A1 - Radtke, Martin A1 - Reinholz, Uwe A1 - Riesemeier, Heinrich A1 - Streli, Christina T1 - S²XAFS: A new experimental setup for time-resolved X-ray absorption fine structure spectroscopy in a 'single shot' N2 - A newly developed EXAFS setup is presented. It enables both time- and spatially resolved EXAFS information simul-taneously in a single shot. First tests of this setup were performed at the BAMline @ BESSY-II (Berlin, Germany). A primary broadband beam generated by a filter/X-ray-mirror combination passes through the sample and is then dif-fracted by a convexly bent Si (111) crystal. This results in a divergent beam which is collected by an area sensitive detector, in a θ-2θ-geometry. Beside tests on metal foils the first in situ measurements were successfully carried out. The case-study deals with research on Zn-based Metal-Organic-Frameworks (MOF) with medical/pharmaceutical applications. This hot topic of MOFs research concerns drug delivery and encapsulation of therapeutically relevant proteins (e.g. BSA). Questions like how does a certain protein influences the coordination of Zn can be answered with this new setup. We were able to track structural changes within a 1s time resolution. T2 - CSI XL CY - Pisa, Italy DA - 11.06.2017 KW - XAFS KW - Time-resolved KW - Dispersive KW - In-situ measurement PY - 2017 AN - OPUS4-41052 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kühn, Andreas A1 - Scharf, Oliver A1 - Ordavo, I. A1 - Riesemeier, Heinrich A1 - Reinholz, Uwe A1 - Radtke, Martin A1 - Ostermann, Markus A1 - Berger, Achim A1 - Panne, Ulrich T1 - Schnelle ortsaufgelöste Messungen der Elementverteilung in TXRF-Proben T2 - Konferenz PRORA 2011 CY - Berlin, Germany DA - 2011-11-24 PY - 2011 AN - OPUS4-24981 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Berger, Achim A1 - Görner, Wolf A1 - Merchel, Silke A1 - Radtke, Martin A1 - Reinholz, Uwe A1 - Riesemeier, Heinrich A1 - Pernicka, E. A1 - Reiche, I. A1 - Riederer, J. T1 - Non-destructive analyses by PIXE and Sy-XRF: Indian Miniatures, Renaissance metal point drawings and the Sky Disc of Nebra T2 - ECAART-8 8th European Conference on Accelerators in Applied Research and Technology CY - Paris, France DA - 2004-09-20 PY - 2004 AN - OPUS4-5058 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Berger, Achim A1 - Görner, Wolf A1 - Merchel, Silke A1 - Radtke, Martin A1 - Riesemeier, Heinrich A1 - Reiche, I. A1 - Riederer, J. T1 - Silberstiftzeichnungen - Zerstörungsfreie Spurenanalyse mit Synchrotronstrahlung T2 - Papier-Restaurierung / 10. IADA-Kongress (Internationale Arbeitsgemeinschaft der Archiv-, Bibliotheks- und Graphikrestauratoren) CY - Göttingen, Germany DA - 2003-09-21 PY - 2003 AN - OPUS4-3080 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Radtke, Martin A1 - Berger, Achim A1 - Görner, Wolf A1 - Merchel, Silke A1 - Riesemeier, Heinrich A1 - Reiche, I. A1 - Riederer, J. A1 - Roth, M. T1 - BAMline meets Dürer and Van Eyck: Spatialy resolved SR-XRF analyses of silver point drawings and thier mysterious inscriptions T2 - ICXOM: 17th International Congress on X-ray Optics and Microanalysis CY - Chamonix, France DA - 2003-09-22 PY - 2003 AN - OPUS4-3794 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Reiche, I. A1 - Berger, Achim A1 - Görner, Wolf A1 - Merchel, Silke A1 - Radtke, Martin A1 - Riesemeier, Heinrich A1 - Bevers, H. A1 - Duval, A. A1 - Roth, M. T1 - Synchrotron radiation on the traces of famous painters:XRF analyses of silverpoint drawing by Dürer, Holbein, Van Eycken and Rembrandt T2 - Synchrotron Radiation in Art and Archaeology; ESRF-CNRS Joint Workshop CY - Grenoble, France DA - 2005-02-09 PY - 2005 AN - OPUS4-7462 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Merchel, Silke A1 - Berger, Achim A1 - Görner, Wolf A1 - Radtke, Martin A1 - Reinholz, Uwe A1 - Riesemeier, Heinrich A1 - Vogl, Jochen A1 - Frisch, A. A1 - Reiche, I. T1 - Kunst- und Kulturgüter unter "Beschuss" T2 - GDCh-Jahrestagung Chemie 2003, Fachgruppentagung der Fachgruppe Nuklearchemie CY - Munich, Germany DA - 2003-10-06 PY - 2003 UR - http://www.meteoroids.de/docs/poster/KunstKulturGDChMercheletal2003.pdf AN - OPUS4-4921 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Merchel, Silke A1 - Berger, Achim A1 - Görner, Wolf A1 - Radtke, Martin A1 - Reinholz, Uwe A1 - Riesemeier, Heinrich A1 - Vogl, Jochen A1 - Frisch, A. A1 - Reiche, I. A1 - Riederer, J. T1 - Kunst- und Kulturgüter unter "Beschuss" T2 - 13. Jahrescolloquium der Interessengemeinschaft Atomspektroskopie CY - Berlin, Germany DA - 2003-11-19 PY - 2003 UR - http://www.meteoroids.de/docs/poster/KunstKulturGDChMercheletal2003.pdf AN - OPUS4-4922 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Görner, Wolf A1 - Berger, Achim A1 - Merchel, Silke A1 - Radtke, Martin A1 - Reinholz, Uwe A1 - Riesemeier, Heinrich A1 - Pernicka, E. A1 - Reiche, I. A1 - Riederer, J. T1 - Kunst- und Kulturgüter unter "Beschuss" T2 - DACH-Jahrestagung 2004: ZfP in Forschung, Entwicklung und Anwendung CY - Salzburg, Austria DA - 2004-05-17 PY - 2004 AN - OPUS4-5065 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Berger, Achim A1 - Görner, Wolf A1 - Buck, St. A1 - Ketelsen, Th. A1 - Merchel, Silke A1 - Radtke, Martin A1 - Riederer, J. A1 - Riesemeier, Heinrich T1 - BAMline meets Dürer and Van Eyck: Multidisciplinary investigations of Renaissance silver point drawings T2 - 21st BESSY Users' Meeting CY - Berlin, Germany DA - 2002-12-05 PY - 2002 AN - OPUS4-4899 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Riesemeier, Heinrich A1 - Görner, Wolf A1 - Merchel, Silke A1 - Radtke, Martin T1 - Schwefelbestimmung in Kraftstoffen mittels SYRFA T2 - DGZfP-Jahrestagung 2003: Zerstörungsfreie Materialprüfung - ZfP in Anwendung, Entwicklung und Forschung CY - Mainz, Germany DA - 2003-05-26 PY - 2003 AN - OPUS4-3855 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Berger, Achim A1 - Merchel, Silke A1 - Radtke, Martin A1 - Riesemeier, Heinrich A1 - Görner, Wolf A1 - Guicharnaud, H. A1 - Duval, A. A1 - Reiche, I. A1 - Riederer, J. T1 - Quand Dürer rencontre AGLAE et BESSY - Etude non destructive de dessins a la pointe de metal du carnet de voyage d'Albrecht T2 - DAAD PROCOPE - Informations- und Kontaktbörse (pre-Procope) CY - Lyon, France DA - 2002-11-08 PY - 2002 AN - OPUS4-2978 LA - fra AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Berger, Achim A1 - Ecker, Klaus A1 - Görner, Wolf A1 - Radtke, Martin A1 - Reinholz, Uwe A1 - Riesemeier, Heinrich A1 - Segebade, Christian T1 - Strahlenverfahren in Kombination - ein Werkzeug für Analyse und Zertifizierung von Feststoffen T2 - Interessengemeinschaft Atomspektroskopie Berlin (IGAS), 12. Jahrescolloquium "Analyse von Feststoffen unterschiedlicher Materialien aus Industrie und Umwelt CY - Berlin, Germany DA - 2002-11-19 PY - 2002 AN - OPUS4-2992 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Görner, Wolf A1 - Berger, Achim A1 - Haase, Oskar A1 - Hedrich, Martina A1 - Merchel, Silke A1 - Radtke, Martin A1 - Riesemeier, Heinrich A1 - Reinholz, Uwe A1 - Segebade, Christian A1 - Alber, D. A1 - Kardjilov, N. T1 - Beamline-based elemental analysis at BAM T2 - 11th International Conference on Modern Trends in Activation Analysis (MTAA-11) CY - Guildford, England DA - 2004-06-20 PY - 2004 AN - OPUS4-3636 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Radtke, Martin A1 - Berger, Achim A1 - Görner, Wolf A1 - Merchel, Silke A1 - Riesemeier, Heinrich A1 - Riederer, J. A1 - Reiche, I. T1 - Spatial resolved trace analysis of Dürer's silver point drawings by means of SR-XRF T2 - EDXRS 2002 - European Conference on Energy Dispersive X-Ray Spectrometry CY - Berlin, Germany DA - 2002-06-16 PY - 2002 AN - OPUS4-2993 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Berger, Achim A1 - Görner, Wolf A1 - Merchel, Silke A1 - Radtke, Martin A1 - Riesemeier, Heinrich A1 - Reiche, I. A1 - Riederer, J. T1 - Dürer's chemischer Fingerprint - Untersuchungen mittels Synchrotroninduzierter Röntgenfluoreszenzanalyse rescon T2 - 5. Erfurter Fachtage für Konservierung und Restaurierung CY - Erfurt, Germany DA - 2002-11-28 PY - 2002 AN - OPUS4-2994 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Radtke, Martin A1 - Merchel, Silke A1 - Riesemeier, Heinrich A1 - Görner, Wolf T1 - Erste Erfahrungen mit der Röntgenfluoreszenzspektrometrie an der BAMline beim Elektronenspeicherring BESSY II T2 - 9. Anwendertreffen Röntgenfluoreszenz- und Funkenmissionsspektrometrie CY - Dortmund, Germany DA - 2002-03-04 PY - 2002 AN - OPUS4-2990 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Riesemeier, Heinrich A1 - Görner, Wolf A1 - Müller, Bernd R. A1 - Radtke, Martin A1 - Krumrey, M. T1 - Layout and first applications of the BAMline at BESSY II T2 - EDXRS 2002 - European Conference on Energy Dispersive X-Ray Spectrometry CY - Berlin, Germany DA - 2002-06-16 PY - 2002 AN - OPUS4-3003 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Berger, Achim A1 - Görner, Wolf A1 - Merchel, Silke A1 - Radtke, Martin A1 - Reinholz, Uwe A1 - Riesemeier, Heinrich A1 - Pernicka, E. A1 - Reiche, I. A1 - Riederer, J. A1 - Wunderlich, C. H. T1 - Kunst- und Kulturgüter unter "Beschuss" T2 - Tag der Chemie, Universitätsstandort CY - Potsdam, Germany DA - 2004-07-07 PY - 2004 AN - OPUS4-3632 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Merchel, Silke A1 - Radtke, Martin T1 - Pflichtprogramm der BAM an der BAMline T2 - 2. Seminar zur Nutzung des Wellen-längenschieber-Messplatzes bei BESSY II CY - Berlin, Germany DA - 2001-11-08 PY - 2001 AN - OPUS4-2985 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Radtke, Martin T1 - Instrumentation for the BESSY micriprobe T2 - Workshop on "An Application of Microfocus X-Ray Sourses in Material- Enviromental-, Life-Science and Archeometry" CY - Berlin, Germany DA - 2002-09-03 PY - 2002 AN - OPUS4-2991 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wacker, G. A1 - Reinholz, Uwe A1 - Radtke, Martin A1 - Hanning, S. A1 - Kreyenschmidt, M. T1 - Bestimmung der lateralen Elementverteilung in potenziellen Referenzmaterialien auf Duromerbasis mittels Sy-RFA T2 - Deutsche Tagung für Forschung mit Synchrotronstrahlung, Neutronen und Ionenstrahlen, SNI 2010 CY - Berlin, Germany DA - 2010-02-24 PY - 2010 AN - OPUS4-20068 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Polte, Jörg A1 - Delißen, Friedmar A1 - Ahner, T. T. A1 - Sokolov, S. A1 - Kraehnert, R. A1 - Radtke, Martin A1 - Reinholz, Uwe A1 - Riesemeier, Heinrich A1 - Emmerling, Franziska T1 - Investigation of nucleation and growth processes of gold nanoparticles via coupled in situ SAXS/XANES T2 - DPG Tagung in Dresden CY - Dresden, Germany DA - 2009-03-22 PY - 2009 AN - OPUS4-18731 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Radtke, Martin A1 - Reinholz, Uwe A1 - Riesemeier, Heinrich T1 - The use of Synchrotron Radiation induced X-Rax Fluorescence for the Chracterization of Ancient Gold objects T2 - AURUM: workshop on authentication and analysis of gold work CY - Paris, France DA - 2009-05-11 PY - 2009 AN - OPUS4-18532 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Reuter, Dirk A1 - Hodoroaba, Vasile-Dan A1 - Radtke, Martin A1 - Reinholz, Uwe A1 - Riesemeier, Heinrich T1 - A basic physical Model of X-Ray Scattering for improved X-Ray Fluoescence Analysis T2 - FKA - 15. Tagung Festkörperanalytik CY - Chemnitz, Germany DA - 2009-07-12 PY - 2009 AN - OPUS4-19643 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Polte, Jörg A1 - Radtke, Martin A1 - Reinholz, Uwe A1 - Riesemeier, Heinrich A1 - Emmerling, Franziska A1 - Thünemann, Andreas T1 - In situ studies using SAXS allow new insights in the nucleation and growth processes of nanoparticles T2 - Adlershofer Jubiläumssymposium "Licht-Materialien-Modelle" CY - Berlin, Germany DA - 2009-09-08 PY - 2009 AN - OPUS4-19999 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mans, C. A1 - Ostermann, Markus A1 - Recknagel, Sebastian A1 - Michaelis, Matthias A1 - Maiwald, Michael A1 - Radtke, Martin A1 - Panne, Ulrich T1 - Entwicklung polymerer Referenzmaterialien T2 - CANAS 09, Kolloquim Analytischer Atomspektrometrie CY - Freiberg, Germany DA - 2009-03-22 PY - 2009 AN - OPUS4-19197 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Swart, Claudia A1 - Frank, C. A1 - Piechotta, Christian A1 - Lück, Detlef A1 - Radtke, Martin A1 - Reinholz, Uwe T1 - Entwicklung eines Festphasenspikes für Arsenspezies in Fisch T2 - ANAKON 2009 CY - Berlin, Germany DA - 2009-03-17 PY - 2009 AN - OPUS4-19719 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Radtke, Martin T1 - Materialforschung an der BAMline T2 - Seminar Strahlenphysikalische Anwendungen in Technik und Medizin CY - Vienna, Austria DA - 2009-01-28 PY - 2009 AN - OPUS4-19183 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Radtke, Martin A1 - Constantinescu, B. A1 - Bugoi, R. A1 - Cojocaru, V. A1 - Calligaro, Th. A1 - Salomon, J. A1 - Pichon, L. A1 - Roehrs, St. A1 - Ceccato, D. T1 - Micro-SR-XRF and Micro-PIXE studies for archaeological gold identification - The case of Carpathian (Transylvanian) gold and of Dacian bracelets T2 - Ecaart 9 CY - Florence, Italy DA - 2007-09-03 PY - 2007 AN - OPUS4-17862 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Reiche, I. A1 - Berger, Achim A1 - Duval, A. A1 - Guicharnaud, H. A1 - Merchel, Silke A1 - Radtke, Martin A1 - Schäfer, D. A1 - Simon, R. T1 - SY-XRF study of silverpoint drawings of Hans Baldung Grien from the Karlsruher Skizzenbuch and the corresponding silver stylus (16th c.) T2 - European Conference on X-Ray Spectrometry CY - Paris, France DA - 2006-06-19 PY - 2006 AN - OPUS4-16279 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Simons, C. A1 - Mans, C. A1 - Hanning, S. A1 - Janßen, A. A1 - Alber, D. A1 - Radtke, Martin A1 - Reinholz, Uwe A1 - Kreyenschmidt, M. T1 - New polymeric reference materials for XRF and LA-ICP-MS - development and characterization T2 - POLYDAYS 2008, Active and Adaptive Polymeric Materials, Freie Universität Berlin CY - Berlin, Germany DA - 2008-10-01 PY - 2008 AN - OPUS4-17832 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Simons, C. A1 - Mans, C. A1 - Hanning, S. A1 - Janßen, A. A1 - Kreyenschmidt, M. A1 - Alber, D. A1 - Radtke, Martin A1 - Reinholz, Uwe T1 - New polymeric reference materials for XRF and LA-ICP-MS - development and characterization T2 - European Conference on X-ray Spectrometry CY - Dubrovnik, Croatia DA - 2008-06-16 PY - 2008 AN - OPUS4-17844 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Simons, C. A1 - Mans, C. A1 - Hannig, S. A1 - Alber, D. A1 - Radtke, Martin A1 - Reinholz, Uwe T1 - New polymeric reference materials for XRF and LA-ICP-MS - development and characterization T2 - BESSY Users' Meeting 2008 CY - Berlin, Germany DA - 2008-12-04 PY - 2008 AN - OPUS4-18223 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Reiche, I. A1 - Berger, Achim A1 - Görner, Wolf A1 - Merchel, Silke A1 - Radtke, Martin A1 - Riesemeier, Heinrich A1 - Duval, A. A1 - Guicharnaud, H. A1 - Riederer, J. T1 - Auf den Spuren Albrecht Dürers - Zertörungsfreie Untersuchung von Silberstiftzeichnungen mittels micro-PIXE und Synchrotron-induzierte micro-RFA T2 - Jahrestagung des Arbeitskreises Archäometrie in der Fachgruppe Analytische Chemie der Gesellschaft Deutscher Chemiker (GDCh) CY - Berlin, Germany DA - 2003-03-12 PY - 2003 AN - OPUS4-3795 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Reiche, I. A1 - Berger, Achim A1 - Görner, Wolf A1 - Guicharnaud, H. A1 - Merchel, Silke A1 - Radtke, Martin A1 - Riederer, J. A1 - Riesemeier, H. A1 - Roth, M. A1 - Duval, A. A1 - Bevers, H. T1 - Non-Destructive investigations of Dürer's silver point drawings by pixe and sr-xrf T2 - 7th International Conference on Non-Destructive Testing and Microanalysis for the Diagnostics and Conservation of the Cultural and Environmental Heritage, Congress Centre Elzenveld CY - Antwerp, Belgium DA - 2002-06-02 PY - 2002 AN - OPUS4-2995 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Merchel, Silke A1 - Berger, Achim A1 - Görner, Wolf A1 - Radtke, Martin A1 - Riesemeier, Heinrich A1 - Reiche, I. A1 - Riederer, J. A1 - Duval, A. A1 - Guicharnaud, H. T1 - Non- Destructive Investigations of Dürer's Silver Point Drawings by Pixe and SY-XRF T2 - 7th International Conference on Non-Destructive Testing and Microanalysis for the Diagnostics and Conservation of the Cultural and Environmental Heritage, Congress Centre Elzenveld CY - Antwerp, Belgium DA - 2002-06-02 PY - 2002 AN - OPUS4-2982 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Radtke, Martin A1 - Görner, Wolf A1 - Matschat, Ralf A1 - Riesemeier, Heinrich A1 - Eichelbaum, M. A1 - Rademann, K. T1 - XANES Measurements On Glass Samples at the BAMline T2 - PRORA-Fachtagung "Prozessnahe Röntgenanalytik" CY - Berlin, Germany DA - 2005-11-24 PY - 2005 AN - OPUS4-11651 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Constantinescu, B. A1 - Vasilescu, A. A1 - Radtke, Martin A1 - Reinholz, Uwe T1 - A study on gold and copper provenance for romanian prehistoric objects using Micro-SR-XRF T2 - Synchrotron Radiation in Art & Archaeology CY - Amsterdam, Netherlands DA - 2010-11-07 PY - 2010 AN - OPUS4-21324 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Radtke, Martin A1 - Grunewald, Andreas A1 - Reinholz, Uwe A1 - Riesemeier, Heinrich A1 - Reinholz, Uwe T1 - SRXRF - measurements at non planar objects: Automatic determination of the angle of inicidence of the exciting X-ray T2 - Synchroton Radiation in Art & Avhaelogy (SR2A-2010) CY - Amsterdam, Netherlands DA - 2010-11-07 PY - 2010 AN - OPUS4-21378 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Constantinescu, B. A1 - Radtke, Martin A1 - Bugoi, R. A1 - Vasilescu, A. A1 - Calligaro, Th. A1 - Salomon, J. A1 - Pichon, L. A1 - Röhrs, S. A1 - Ceccato, D. A1 - Pop, D. T1 - Archaeological gold provenance studies based on SR-XRF and micro-PIXE analyses T2 - 20th General Meeting of the International Mineralogical Association (IMA2010) CY - Budapest, Hungary DA - 2010-08-21 PY - 2010 AN - OPUS4-22025 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Christea-Stan, D. A1 - Constantinescu, B. A1 - Vasilescu, A. A1 - Radtke, Martin A1 - Reinholz, Uwe A1 - Popescu, Gh. A1 - Neacsu, A. A1 - Ceccato, D. T1 - Micro-SR-XRF and micro-PIXE studies for archaeological gold identification - the case of Transylvanian gold T2 - 20th General Meeting of the International Mineralogical Association (IMA2010) CY - Budapest, Hungary DA - 2010-08-21 PY - 2010 AN - OPUS4-22026 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Zier, M. A1 - Munnik, F. A1 - Reinholz, Uwe A1 - Riesemeier, Heinrich A1 - Radtke, Martin T1 - Accurate stopping power determination of 15N ions hydrogen depth profiling by a unique combination of ion beams and synchrotron radiation T2 - 20th International Conference on Ion Beam Analysis CY - Itapema, Brazil DA - 2011-04-10 PY - 2011 AN - OPUS4-23607 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Scharf, O. A1 - Wedell, R. A1 - Radtke, Martin A1 - Reinholz, Uwe A1 - Riesemeier, Heinrich A1 - Langhoff, N. A1 - Soltau, H. A1 - Ihle, S. T1 - X-ray color camera, a detector with high resolution in energy and space T2 - E-MRS 2011 SPRING MEETING CY - Nice, France DA - 2011-05-09 PY - 2011 AN - OPUS4-23267 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Constantinescu, B. A1 - Vasilescu, A. A1 - Radtke, Martin A1 - Reinholz, Uwe T1 - XRF and micro-SR-XRF studies for Dacian gold jewelry authentication T2 - European Conference on X-Ray Spectrometry CY - Figueira da Foz, Portugal DA - 2010-06-20 PY - 2010 AN - OPUS4-23737 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Cabral, A.R. A1 - Lehmann, B. A1 - Radtke, Martin A1 - Reinholz, Uwe A1 - Riesemeier, Heinrich A1 - Kwitko-Ribeiro, R. A1 - Tupinambá, M. T1 - Iodine fingerprints biogenic fixation of platinum and palladium T2 - Goldschmidt 2011 CY - Prague, Czech Republic DA - 2011-08-14 PY - 2011 AN - OPUS4-23606 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Radtke, Martin A1 - Buzanich, Günter A1 - Reinholz, Uwe A1 - Riesemeier, Heinrich T1 - X-ray Fluorescence analysis using synchrotron radiation excitation T2 - 75. Jahrestagung der DPG und DPG Frühjahrstagung CY - Dresden, Germany DA - 2011-03-13 PY - 2011 AN - OPUS4-24023 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - George, Janine T1 - Understanding and Machine Learning of Materials Properties with Quantum-Chemical Bonding Analysis N2 - Bonds and local atomic environments are crucial descriptors for material properties. They have been used to create design rules for materials and are used as features in machine learning of material properties. This talk will show how our recently developed tools, that automatically perform quantum chemical bond analysis and enable the study of chemical bonds and local atomic environments, accelerate and improve the development of such heuristics and machine-learned models for materials properties. T2 - Accelerate Conference 2023 CY - Toronto, Canada DA - 22.08.2023 KW - Automation KW - DFT KW - Bonds PY - 2023 AN - OPUS4-58131 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Strub, Erik A1 - Riesemeier, Heinrich A1 - Radtke, Martin T1 - SRXRF zur Zertifizierung von Referenzmaterialien T2 - SAAGAS 21 - Seminar Aktivierungsanalyse und Gammaspektroskopie CY - Mainz, Germany DA - 2007-03-21 PY - 2007 AN - OPUS4-14669 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - George, Janine T1 - Data-driven chemical understanding with geometrical and quantum-chemical bonding analysis N2 - Chemical bonding and coordination environments are crucial descriptors of material properties. They have previously been applied to creating chemical design guidelines and chemical heuristics. They are currently being used as features in machine learning more and more frequently. I will discuss implementations and algorithms (ChemEnv and LobsterEnv) for identifying these coordination environments based on geometrical characteristics and chemical bond quantum chemical analysis. I'll demonstrate how these techniques helped in testing chemical heuristics like the Pauling rule and thereby improved our understanding of chemistry. I'll also show how these tools can be used to create new design guidelines and a new understanding of chemistry. To use quantum-chemical bonding analysis on a large-scale and for machine-learning approaches, fully automatic workflows and analysis tools have been developed. After presenting the capabilities of these tools, I will also point out how these developments relate to the general trend towards automation in the field of density functional based materials science. T2 - ICAMS Interdisciplinary Centre for Advanced Materials Simulation Seminar Series CY - Online meeting DA - 24.11.2022 KW - Automation KW - High-throughput KW - Machine learning KW - Materials informatics KW - Bonding Analysis PY - 2022 AN - OPUS4-56417 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - George, Janine T1 - New chemical understanding with the help of automation and highthroughput computations N2 - High-throughput computations are nowadays an established way to suggest new candidate materials for applications to experimentalists. Due to new packages for automation and access to databases of computed materials properties, these studies became more and more complex over the last years. Besides suggesting new candidate materials for applications, they also offer a way to understanding the materials properties based on chemical bonds. For example, we have recently used orbital-based bonding analysis to understand the results of high-throughput studies for spintronic materials, ferroelectric materials and photovoltaic materials in detail. To do so, we have developed Python tools for high-throughput bonding analysis with the programs VASP and Lobster (see www.cohp.de). They are based on the Python packages pymatgen, atomate, and custodian. This implementation will be discussed within the talk. We also expect that these tools offer possibilities to arrive at new descriptors based on chemical bonds for materials properties. T2 - High-throughput workflows for materials science with the Atomic Simulation Environment (ASE) and Fireworks CY - Lyngby, Denmark DA - 15. November 2021 KW - Automation KW - High-throughput computations KW - DFT PY - 2021 AN - OPUS4-53840 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rakotondrajoa, Andrianiaina A1 - Buzanich, Günter A1 - Radtke, Martin A1 - Reinholz, Uwe A1 - Riesemeier, Heinrich A1 - Raboanary, R. A1 - Vincze, L. T1 - Determination of the Efficiency of a Silicon Drift Detector (SDD9 by Monte Carlo Simulation T2 - Denver X Ray Conferences 2012 CY - Denver, CO, USA DA - 2012-08-06 PY - 2012 AN - OPUS4-27185 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Reinholz, Uwe A1 - Munnik, F. A1 - Michalak, P. P. A1 - Radtke, Martin A1 - Buzanich, Günter A1 - Merchel, S. A1 - Renno, A. D. A1 - Riesemeier, Heinrich T1 - Spatially-resolved analysis of natural minerals as carriers of high-tech metals and Rare Earth Elements: comparison of EPMA, PIXE and Sy-µXRF T2 - 13th INTERNATIONAL CONFERENCE ON NUCLEAR MICROPROBE TECHNOLOGY & APPLICATIONS 2012 CY - Lisbon, Portugal DA - 2012-07-22 PY - 2012 AN - OPUS4-26962 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rakotondrajoa, Andrianiaina A1 - Buzanich, Günter A1 - Radtke, Martin A1 - Reinholz, Uwe A1 - Riesemeier, Heinrich A1 - Raboanary, R. A1 - Vincze, L. T1 - Improvement of PLS regression based XRF spectroscopy quantification using multiple step procedure and Monte Carlo simulation T2 - 12th International Symposium on Radiation Physics CY - Rio de Janeiro, Brazil DA - 2012-10-07 PY - 2012 AN - OPUS4-27186 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Radtke, Martin T1 - First experiences with the combination of polycapillary optics and an energy dispersive pn- CCD detector at BAMline at Bessy T2 - X-ray micro-fluorescence spectroscopy at the PETRA III extension: second user workshop CY - Hamburg, Germany DA - 2011-09-27 PY - 2011 AN - OPUS4-26924 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Reinholz, Uwe A1 - Riesemeier, Heinrich A1 - Buzanich, Günter A1 - Radtke, Martin A1 - Bjeoumikhov, S. A1 - Ihle, S. A1 - Soltau, H. A1 - Langhoff, N. A1 - Wedell, R. T1 - The Colour X-ray Camera: Basics, Applications and Perspectives T2 - 11th International Conference on Synchrotron Radiation Instrumentation CY - Lyon, France DA - 2012-07-09 PY - 2012 AN - OPUS4-27184 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Radtke, Martin T1 - Röntgenfluoreszenzanalyse mit Synchrotronstrahlung an der Bundesanstalt für Materialforschung und -prüfung (BAM), Berlin T2 - Seminar: "Strahlenphysikalische Anwendungen in Technik und Medizin" CY - Vienna, Austria DA - 2011-11-23 PY - 2011 AN - OPUS4-26926 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Radtke, Martin T1 - The colour Xray camera: basics, applications and perspectives T2 - Analytik 2012 CY - Beijing, China DA - 2012-03-23 PY - 2012 AN - OPUS4-26922 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -