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Proceedings Paper

Size optimization for mirror segments for X-ray optics
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Paper Abstract

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.

Paper Details

Date Published: 6 October 2011
PDF: 9 pages
Proc. SPIE 8147, Optics for EUV, X-Ray, and Gamma-Ray Astronomy V, 814711 (6 October 2011); doi: 10.1117/12.892636
Show Author Affiliations
Michael P. Biskach, SGT, Inc. (United States)
Ryan S. McClelland, SGT, Inc. (United States)
Timo Saha, NASA Goddard Space Flight Ctr. (United States)
William W. Zhang, NASA Goddard Space Flight Ctr. (United States)

Published in SPIE Proceedings Vol. 8147:
Optics for EUV, X-Ray, and Gamma-Ray Astronomy V
Stephen L. O'Dell; Giovanni Pareschi, Editor(s)

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