Design and analysis of mirror modules for IXO and beyond

Ryan S. McClelland; Cory Powell; Timo T. Saha; William W. Zhang

doi:10.1117/12.893649

6 October 2011 Design and analysis of mirror modules for IXO and beyond

Ryan S. McClelland, Cory Powell, Timo T. Saha, William W. Zhang

Proceedings Volume 8147, Optics for EUV, X-Ray, and Gamma-Ray Astronomy V; 81470O (2011) https://doi.org/10.1117/12.893649
Event: SPIE Optical Engineering + Applications, 2011, San Diego, California, United States

Abstract

Advancements in X-ray astronomy demand thin, light, and closely packed thin optics which lend themselves to segmentation of the annular mirrors and, in turn, a modular approach to the mirror design. The functionality requirements of such a mirror module are well understood. A baseline modular concept for the proposed International X-Ray Observatory (IXO) Flight Mirror Assembly (FMA) consisting of 14,000 glass mirror segments divided into 60 modules was developed and extensively analyzed. Through this development, our understanding of module loads, mirror stress, thermal performance, and gravity distortion have greatly progressed. The latest progress in each of these areas is discussed herein. Gravity distortion during horizontal X-ray testing and on-orbit thermal performance have proved especially difficult design challenges. In light of these challenges, fundamental trades in modular X-ray mirror design have been performed. Future directions in module X-ray mirror design are explored including the development of a 1.8 m diameter FMA utilizing smaller mirror modules. The effect of module size on mirror stress, module selfweight distortion, thermal control, and range of segment sizes required is explored with advantages demonstrated from smaller module size in most cases.

Citation Download Citation

Ryan S. McClelland, Cory Powell, Timo T. Saha, and William W. Zhang "Design and analysis of mirror modules for IXO and beyond", Proc. SPIE 8147, Optics for EUV, X-Ray, and Gamma-Ray Astronomy V, 81470O (6 October 2011); https://doi.org/10.1117/12.893649

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available