Development of iridium coated x-ray mirrors for astronomical applications
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F17%3A00312875" target="_blank" >RIV/68407700:21230/17:00312875 - isvavai.cz</a>
Result on the web
<a href="https://www.spiedigitallibrary.org/conference-proceedings-of-spie/10399/2273988/Development-of-iridium-coated-x-ray-mirrors-for-astronomical-applications/10.1117/12.2273988.short" target="_blank" >https://www.spiedigitallibrary.org/conference-proceedings-of-spie/10399/2273988/Development-of-iridium-coated-x-ray-mirrors-for-astronomical-applications/10.1117/12.2273988.short</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1117/12.2273988" target="_blank" >10.1117/12.2273988</a>
Alternative languages
Result language
angličtina
Original language name
Development of iridium coated x-ray mirrors for astronomical applications
Original language description
Future space-based X-ray observatories need to be very lightweight for launcher mass constraints. Therefore they will use a reduced mirror thickness, which results in the additional requirement of low coating stress to avoid deformation of the initial precisely shaped mirror substrates. Due to their excellent reflection properties iridium coatings are sometimes applied for grazing incidence mirrors in astronomical X-ray telescopes. At Aschaffenburg University of Applied Sciences the coating of thin iridium films by an RF-magnetron sputtering technique is under development. The work is embedded in collaborations with the Max-Planck-Institute for Extraterrestrial Physics in Germany, the Czech Technical University in Prague, the Osservatorio Astronomico di Brera in Italy, the German Leibniz Institute for Solid State and Materials Research in Dresden, and the French Institute Fresnel. Sputtering with different parameters leads to iridium films with different properties. The current work is focused on the microstructure of the iridium coatings to study the influence of the substrate and of the argon gas pressure on the thin film growing process. Correlations between coating density, surface micro-roughness, the crystalline structure of the iridium layers, and the expected reflectivity of the X-ray mirror as well as coating stress effects are presented and discussed. The final goal of the project is to integrate the produced prototype mirrors into an X-ray telescope module. On a longer timescale measurements of the mirror modules optical performance are planned at the X-ray test facility PANTER
Czech name
—
Czech description
—
Classification
Type
D - Article in proceedings
CEP classification
—
OECD FORD branch
10306 - Optics (including laser optics and quantum optics)
Result continuities
Project
—
Continuities
V - Vyzkumna aktivita podporovana z jinych verejnych zdroju
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Optics for EUV, X-Ray, and Gamma-Ray Astronomy VIII 2017
ISBN
978-1-5106-1255-6
ISSN
0277-786X
e-ISSN
1996-756X
Number of pages
8
Pages from-to
—
Publisher name
The International Society for Optical Engineering (SPIE)
Place of publication
Bellingham WA
Event location
San Diego
Event date
Aug 8, 2017
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000417112300040