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6 October 2023 X-ray mirror coatings for NewAthena: updated design, development status, and performance
Desiree Della Monica Ferreira, Sonny Massahi, Diego Paredes Sanz, Sara Svendsen, Nis Christian Gellert, Arne S. Jegers, Finn Erland Christensen, Boris Landgraf, Max Collon, Ivo Ferreira, Marcos Bavdaz
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Proceedings Volume 12679, Optics for EUV, X-Ray, and Gamma-Ray Astronomy XI; 126790S (2023) https://doi.org/10.1117/12.2678302
Event: SPIE Optical Engineering + Applications, 2023, San Diego, California, United States
Abstract
We present an overview of the development of the X-ray reflective coatings for the NewAthena mission based on the latest mission concept reported by the Science Re-definition Team (SRDT). The reflection of X-rays depends strongly on the material adopted as mirror coating, in this study we re-visit the material options as overcoat for Ir and trade-offs. Along with optimised expected performance based on single layer, bi-layer, tri-layer and multilayer coating designs, we also report on the latest experimental results on X-ray performance of the coatings deposited onto SPO plates by magnetron sputtering. X-ray reflectometry are presented and allow for characterisation of the X-ray mirrors and provide results on performance and stability.
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Desiree Della Monica Ferreira, Sonny Massahi, Diego Paredes Sanz, Sara Svendsen, Nis Christian Gellert, Arne S. Jegers, Finn Erland Christensen, Boris Landgraf, Max Collon, Ivo Ferreira, and Marcos Bavdaz "X-ray mirror coatings for NewAthena: updated design, development status, and performance", Proc. SPIE 12679, Optics for EUV, X-Ray, and Gamma-Ray Astronomy XI, 126790S (6 October 2023); https://doi.org/10.1117/12.2678302
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KEYWORDS
X-rays
Mirrors
Design and modelling
X-ray characterization
Magnetrons
Multilayers
Reflection
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