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Proceedings Paper

Development of lightweight x-ray mirrors for the Constellation-X mission
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Paper Abstract

One of the most important aspects of the Constellation-X x-ray optics development is the fabrication of lightweight mirror segments. Given its multi-faceted requirements, i.e., good angular resolution, light weight, and low production cost, we have adopted a glass slumping or forming technique that takes advantage of the naturally excellent microroughness of thin float glass sheets. In this paper we present measured quantities of formed mirror segments and compare them with requirements to show that the formed mirror segments have met all except the sag requirement. The larger than acceptable sag error may be an artifact of the measurement process. It may also be caused by coating stress or residual thermal stress resulting from the slumping process. Our immediate future task is to identify the source(s) of the sag error and address them accordingly.

Paper Details

Date Published: 20 September 2007
PDF: 7 pages
Proc. SPIE 6688, Optics for EUV, X-Ray, and Gamma-Ray Astronomy III, 668811 (20 September 2007); doi: 10.1117/12.731871
Show Author Affiliations
William W. Zhang, NASA Goddard Space Flight Ctr. (United States)
Kai-Wing Chan, NASA Goddard Space Flight Ctr. (United States)
Univ. of Maryland, Baltimore County (United States)
Theo Hajimichael, NASA Goddard Space Flight Ctr. (United States)
Ball Aerospace Corp. (United States)
John P. Lehan, NASA Goddard Space Flight Ctr. (United States)
Univ. of Maryland, Baltimore County (United States)
Scott Owens, NASA Goddard Space Flight Ctr. (United States)
Robert Petre, NASA Goddard Space Flight Ctr. (United States)
Timo T. Saha, NASA Goddard Space Flight Ctr. (United States)
Mikhail V. Gubarev, NASA Goddard Space Flight Ctr. (United States)
Universities Space Research Association (United States)
William D. Jones, NASA Marshall Space Flight Ctr. (United States)
Stephen L. O'Dell, NASA Marshall Space Flight Ctr. (United States)


Published in SPIE Proceedings Vol. 6688:
Optics for EUV, X-Ray, and Gamma-Ray Astronomy III
Stephen L. O'Dell; Giovanni Pareschi, Editor(s)

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