<?xml version="1.0" encoding="utf-8"?>
<export-example>
  <doc>
    <id>1014</id>
    <completedYear>2018</completedYear>
    <publishedYear/>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>8775</pageFirst>
    <pageLast>8779</pageLast>
    <pageNumber/>
    <edition/>
    <issue>57 (29)</issue>
    <volume>2018</volume>
    <type>article</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2018-10-09</completedDate>
    <publishedDate>2018-10-10</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Coating stress analysis and compensation for iridium-based x-ray mirrors</title>
    <abstract language="eng">Iridium-based coatings for mirrors of x-ray telescopes are studied. In particular, stress-induced deformation is characterized and shown to be compressive and equal to −1786  MPa. Two methods for stress compensation are then studied. One relies on the deposition of silica on the back surface of the substrate and a second one relies on the deposition of a chromium sublayer. Advantages and drawbacks of each of these techniques are presented.</abstract>
    <parentTitle language="eng">Applied Optics</parentTitle>
    <identifier type="url">https://doi.org/10.1364/AO.57.008775</identifier>
    <enrichment key="copyright">1</enrichment>
    <licence>Keine Lizenz - es gilt das deutsche Urheberrecht</licence>
    <author>Anne-Catherine Probst</author>
    <editor> Publishing OSA</editor>
    <author>Thomas Begou</author>
    <author>Thorsten Döhring</author>
    <author>Sebastian Zeising</author>
    <author>Manfred Stollenwerk</author>
    <author>Johannes Stadtmüller</author>
    <author>Florian Emmerich</author>
    <author>Julien Lumeau</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>iridium</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>coating stress</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>X-ray</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>mirror</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>astronomy</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Röntgenteleskop</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Iridium</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Spiegelteleskop</value>
    </subject>
    <collection role="forschungsschwerpunkte" number="">Innovative Material Processing</collection>
    <collection role="forschungsschwerpunkte" number="">Material Testing &amp; Sensor Technology</collection>
  </doc>
  <doc>
    <id>998</id>
    <completedYear>2017</completedYear>
    <publishedYear/>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>105621E-01</pageFirst>
    <pageLast>105621E-09</pageLast>
    <pageNumber/>
    <edition/>
    <issue>10562</issue>
    <volume>2017</volume>
    <type>conferenceobject</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2018-08-27</completedDate>
    <publishedDate>2017-09-25</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Iridium coatings for space based x-ray optics</title>
    <abstract language="eng">Future investigations of astronomical X-ray sources require light weight telescope systems with large collecting areas and good angular resolution. The Wolter I type telescope design offers a suitable possibility for obtaining performant X-ray mirrors with high collecting areas. The technology based on replicated slumped glass optics using thin glasses thereby provides the opportunity to fulfil the light weight and mass production requirements. In NASA's telescope NuSTAR this technology has been proven as advantageous compared to previous systems. Coating thin glasses with iridium, gold or platinum enhances the reflectivity of X-ray mirrors.</abstract>
    <parentTitle language="eng">Proceedings of SPIE</parentTitle>
    <identifier type="doi">10.1117/12.2296167</identifier>
    <enrichment key="copyright">1</enrichment>
    <licence>Keine Lizenz - es gilt das deutsche Urheberrecht</licence>
    <author>Anne-Catherine Probst</author>
    <editor>Bruno Cugny</editor>
    <author>Thorsten Döhring</author>
    <editor>Nikos Karafolas</editor>
    <author>Manfred Stollenwerk</author>
    <editor>Zoran Sodnik</editor>
    <author>Wen Mingwu</author>
    <author>Laura Proserpio</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Iridium</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>coating</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>X-ray</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>astronomy</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>mirror</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Iridium</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Spiegelteleskop</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Röntgenastronomie</value>
    </subject>
    <collection role="forschungsschwerpunkte" number="">Innovative Material Processing</collection>
    <collection role="forschungsschwerpunkte" number="">Material Testing &amp; Sensor Technology</collection>
  </doc>
  <doc>
    <id>901</id>
    <completedYear>2017</completedYear>
    <publishedYear/>
    <thesisYearAccepted/>
    <language>deu</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber>2</pageNumber>
    <edition/>
    <issue>2017</issue>
    <volume>2017</volume>
    <type>conferenceobject</type>
    <publisherName>DGaO</publisherName>
    <publisherPlace/>
    <creatingCorporation>Hochschule Aschaffenburg</creatingCorporation>
    <contributingCorporation>Tschechische Technische Universität in Prag</contributingCorporation>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2017-08-15</completedDate>
    <publishedDate>2017-08-02</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="deu">JEUMICO – Bayerisch-tschechische Kooperation zur Entwicklung von Röntgenteleskopen</title>
    <abstract language="deu">Das Projekt JEUMICO wird vom Projektträger BAYHOST im Rahmen eines&#13;
Programms für bilaterale wissenschaftliche Projekte zwischen Tschechien und&#13;
Bayern gefördert. Inhaltlich werden von der Hochschule Aschaffenburg und der&#13;
Technischen Universität Prag hier gemeinsam Röntgenoptiken für ein geplantes&#13;
astronomisches Experiment an Bord einer NASA-Höhenrakete entwickelt.</abstract>
    <parentTitle language="deu">DGaO-Proceedings</parentTitle>
    <identifier type="issn">1614-8436</identifier>
    <identifier type="url">http://www.dgao-proceedings.de/download/118/118_p4.pdf</identifier>
    <enrichment key="copyright">1</enrichment>
    <licence>Keine Lizenz - es gilt das deutsche Urheberrecht</licence>
    <author>Thorsten Döhring</author>
    <author>Anne-Catherine Probst</author>
    <author>Veronika Stehlikova</author>
    <author>Petr Skala</author>
    <author>Adolf Inneman</author>
    <author>Rene Hudec</author>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Röntgenstrahlung</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Teleskop</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Astronomie</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Spiegel</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Röntgenstrahlung</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Spiegelteleskop</value>
    </subject>
    <collection role="forschungsschwerpunkte" number="">Innovative Material Processing</collection>
    <collection role="forschungsschwerpunkte" number="">Material Testing &amp; Sensor Technology</collection>
  </doc>
  <doc>
    <id>900</id>
    <completedYear>2017</completedYear>
    <publishedYear/>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber>4</pageNumber>
    <edition/>
    <issue>8</issue>
    <volume>2017</volume>
    <type>conferenceobject</type>
    <publisherName>UTOB e.V.</publisherName>
    <publisherPlace>Braunschweig</publisherPlace>
    <creatingCorporation>Hochschule Aschaffenburg</creatingCorporation>
    <contributingCorporation>Osservatorio Astronomico di Brera</contributingCorporation>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2017-06-04</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Challenges in metrology of mirror segments for X-ray telescopes</title>
    <abstract language="eng">High angular resolution, large collecting area and reduced weight per unit area are required for astronomical X-ray telescopes of the next generation observatories. New technologies for processing X-ray mirrors are under development to fulfill these needs. One option is to realize a Wolter I type telescope constituted of several hundred nested thin and light-weight X-ray mirror segments. The individual mirror segments need to be coated with an about 100 nm thick film of a high-reflective material to enhance the reflectivity for X-rays. Thereby an accurate shape metrology of the segments is necessary to predict the angular resolution of the astronomical telescope as well as to control the development process of X-ray mirrors. We present the challenges in shape measurements of thin glasses used to control the coating process and first experimental results about the repeatability of the measurements.</abstract>
    <parentTitle language="eng">Proceedings of the 8th High Level Expert Meeting Asphere Metrology</parentTitle>
    <identifier type="url">http://www.upob.de/index.php?option=com_phocadownload&amp;view=category&amp;download=198:8th-high-level-expert-meeting-2017-detailed-programme&amp;id=21:upob-high-level-expert-meetings&amp;Itemid=70</identifier>
    <enrichment key="copyright">1</enrichment>
    <licence>Keine Lizenz - es gilt das deutsche Urheberrecht</licence>
    <author>Anne-Catherine Probst</author>
    <author>Thorsten Döhring</author>
    <author>Sebastian Zeising</author>
    <author>Bianca Salmaso</author>
    <author>Manfred Stollenwerk</author>
    <author>Laura Proserpio</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>metrology</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>mirror</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>telescope</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Spiegelteleskop</value>
    </subject>
    <collection role="forschungsschwerpunkte" number="">Innovative Material Processing</collection>
    <collection role="forschungsschwerpunkte" number="">Material Testing &amp; Sensor Technology</collection>
    <file>https://opus4.kobv.de/opus4-h-ab/files/900/2017-03_HLEM_Paper_HAB-Probst.pdf</file>
  </doc>
  <doc>
    <id>897</id>
    <completedYear>2017</completedYear>
    <publishedYear/>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1023505-1</pageFirst>
    <pageLast>1023505-7</pageLast>
    <pageNumber>7</pageNumber>
    <edition/>
    <issue>10235</issue>
    <volume>2017</volume>
    <type>conferenceobject</type>
    <publisherName>SPIE International Society for Optics and Photonics</publisherName>
    <publisherPlace>Bellingham WA</publisherPlace>
    <creatingCorporation>Czech Technical University in Prague</creatingCorporation>
    <contributingCorporation>Hochschule Aschaffenburg</contributingCorporation>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2017-06-04</completedDate>
    <publishedDate>2017-05-31</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Study of lobster eye optics with iridium coated X-ray mirrors for a rocket experiment</title>
    <abstract language="eng">In the field of astronomical X-ray telescopes, different types of optics based on grazing incidence mirrors can be used. This contribution describes the special design of a lobster-eye optics in Schmidt's arrangement, which uses dual reflection to increase the collecting area. The individual mirrors of this wide-field telescope are made of at silicon wafers coated with reflecting iridium layers. This iridium coatings have some advantages compared to more common gold layers as is shown in corresponding simulations. The iridium coating process for the X-ray mirrors was developed within a cooperation of the Aschaffenburg University of Applied Sciences and the Czech Technical University in Prague. Different mirror parameters essential for a proper function of the X-ray optics, like the surface microroughness and the problematic of a good adhesion quality of the coatings were studied. After integration of the individual mirrors into the final lobster-eye optics and the corresponding space qualification testing it is planned to fly the telescope in a recently proposed NASA rocket experiment.</abstract>
    <parentTitle language="eng">Proceedings of the International Society for Optics and Photonics (SPIE)</parentTitle>
    <identifier type="doi">10.1117/12.2265769</identifier>
    <enrichment key="copyright">0</enrichment>
    <licence>Keine Lizenz - es gilt das deutsche Urheberrecht</licence>
    <author>Veronika Stehlikova</author>
    <editor>Rene Hudec</editor>
    <author>Martin Urban</author>
    <author>Ondrej Nentvich</author>
    <author>Adolf Inneman</author>
    <author>Thorsten Döhring</author>
    <author>Anne-Catherine Probst</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Lobster Eye</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Iridium</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>mirror</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>coating</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Iridium</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Spiegelteleskop</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>optische Schicht</value>
    </subject>
    <collection role="forschungsschwerpunkte" number="">Innovative Material Processing</collection>
    <collection role="forschungsschwerpunkte" number="">Material Testing &amp; Sensor Technology</collection>
  </doc>
  <doc>
    <id>896</id>
    <completedYear>2017</completedYear>
    <publishedYear/>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1023504-1</pageFirst>
    <pageLast>1023504-8</pageLast>
    <pageNumber>8</pageNumber>
    <edition/>
    <issue>10235</issue>
    <volume>2017</volume>
    <type>conferenceobject</type>
    <publisherName>SPIE International Society for Optics and Photonics</publisherName>
    <publisherPlace>Bellingham WA</publisherPlace>
    <creatingCorporation>Hochschule Aschaffenburg</creatingCorporation>
    <contributingCorporation>Czech Technical University in Prague</contributingCorporation>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2017-06-04</completedDate>
    <publishedDate>2017-05-31</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Prototyping iridium coated mirrors for X-ray astronomy</title>
    <abstract language="eng">X-ray astronomy uses space-based telescopes to overcome the disturbing absorption of the Earth´s atmosphere. The telescope mirrors are operating at grazing incidence angles and are coated with thin metal films of high-Z materials to get sufficient reflectivity for the high-energy radiation to be observed. In addition the optical payload needs to be light-weighted for launcher mass constrains. Within the project JEUMICO, an acronym for “Joint European Mirror Competence”, the Aschaffenburg University of Applied Sciences and the Czech Technical University in Prague started a collaboration to develop mirrors for X-ray telescopes. The X-ray telescopes currently developed within this Bavarian- Czech project are of Lobster eye type optical design. Corresponding mirror segments use substrates of flat silicon wafers which are coated with thin iridium films, as this material is promising high reflectivity in the X-ray range of interest. The deposition of the iridium films is based on a magnetron sputtering process. Sputtering with different parameters, especially by variation of the argon gas pressure, leads to iridium films with different properties. In addition to investigations of the uncoated mirror substrates the achieved surface roughness has been studied. Occasional delamination of the iridium films due to high stress levels is prevented by chromium sublayers. Thereby the sputtering parameters are optimized in the context of the expected reflectivity of the coated X-ray mirrors. In near future measurements of the assembled mirror modules optical performances are planned at an X-ray test facility.</abstract>
    <parentTitle language="eng">Proceedings of the International Society for Optics and Photonics</parentTitle>
    <identifier type="doi">10.1117/12.2265931</identifier>
    <enrichment key="copyright">0</enrichment>
    <licence>Keine Lizenz - es gilt das deutsche Urheberrecht</licence>
    <author>Thorsten Döhring</author>
    <editor>René Hudec</editor>
    <author>Anne-Catherine Probst</author>
    <editor>Ladislav Pina</editor>
    <author>Manfred Stollenwerk</author>
    <author>Florian Emmerich</author>
    <author>Veronika Stehlíková</author>
    <author>Adolf Inneman</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>X-ray</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>iridium</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>mirror</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>lightweight optic</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Lobster Eye</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Iridium</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Röntgenastronomie</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Spiegelteleskop</value>
    </subject>
    <collection role="forschungsschwerpunkte" number="">Innovative Material Processing</collection>
    <collection role="forschungsschwerpunkte" number="">Material Testing &amp; Sensor Technology</collection>
  </doc>
</export-example>
