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25 September 2017 Iridium coatings for space based x-ray optics
A.-C. Probst, T. Döhring, M. Stollenwerk, M. Wen, L. Proserpio
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Proceedings Volume 10562, International Conference on Space Optics — ICSO 2016; 105621E (2017) https://doi.org/10.1117/12.2296167
Event: International Conference on Space Optics — ICSO 2016, 2016, Biarritz, France
Abstract
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.
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A.-C. Probst, T. Döhring, M. Stollenwerk, M. Wen, and L. Proserpio "Iridium coatings for space based x-ray optics", Proc. SPIE 10562, International Conference on Space Optics — ICSO 2016, 105621E (25 September 2017); https://doi.org/10.1117/12.2296167
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KEYWORDS
Mirrors
Glasses
X-rays
Sputter deposition
Reflectivity
Optical coatings
Surface roughness
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