@inproceedings{74c8f45c4be047efa1aca76dd07080b0,
title = "Platinum and carbon mirror coatings for the NewAthena x-ray optics",
abstract = "As the development of the NewAthena x-ray observatory continues to progress towards mission adoption, refinement of the x-ray reflective mirror coatings remains critical to ensure telescope optics performance. While previous studies have demonstrated suitability of iridium and carbon coatings, platinum is now being explored as a potential alternative due to scarcity of iridium. This however requires a reassessment of coating design and experimental validation. We present optimisations of platinum and carbon thin films, investigating options for multilayer designs to meet the NewAthena effective area requirements. Relevant coating designs are produced and characterised with emphasis on x-ray performance and stability to wet-chemical treatment.",
keywords = "NewAthena, X-ray optics, Thin film, Multilayer, Platinum, Carbon",
author = "S. Svendsen and S. Massahi and \{D. M. Ferreira\}, D. and D. Paredes-Sanz and \{S' Jegers\}, A. and Christensen, \{F. E.\} and A. Thete and B. Landgraf and D. Girou and M. Collon and R. Fechner and D. Skroblin and L. Cibik and C. Gollwitzer and M. Krumrey and E. Kuulkers and M. Bavdaz and Daniele Spiga",
year = "2025",
doi = "10.1117/12.3064444",
language = "English",
volume = "13626",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE - International Society for Optical Engineering",
editor = "Gaskin, \{Jessica A. \} and Spiga, \{Daniele \}",
booktitle = "Proceedings of SPIE: Optics for EUV, X-Ray, and Gamma-Ray Astronomy XII",
note = "Astronomical Applications ; Conference date: 03-08-2025 Through 08-08-2025",
}