Physics – Optics
Scientific paper
Sep 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011spie.8147e..34b&link_type=abstract
Optics for EUV, X-Ray, and Gamma-Ray Astronomy V. Edited by O'Dell, Stephen L.; Pareschi, Giovanni. Proceedings of the SPIE, V
Physics
Optics
Scientific paper
Flight Mirror Assemblies (FMAs) for X-ray telescopes similar to that of the International X-ray Observatory (IXO) concept consist of several thousands of individual mirror segments. The size, shape, and location of these mirrors affect many characteristics of the telescope design. Mission requirements among other factors in turn restrict mirror segment parameters such as thickness, axial length, azimuthal span, and mass density. This paper provides an overview of the critical relationships relating to mirror segment size and configuration throughout the design and analysis of an X-ray mirror assembly. A computational analysis is presented in the form of ray tracing pairs of thin X-ray mirror segments of varying sizes aligned in gravity and supported using kinematic constraints with corresponding self weight distortions calculated using finite element analysis (FEA). The work in this paper may be used as a starting point for determining mirror segment sizes for X-ray missions like that of IXO and beyond.
Biskach Michael P.
McClelland Ryan S.
Saha Timo T.
Zhang William W.
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