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Proceedings Paper

Constellation-X Spectroscopy X-ray Telescope requirements and development program: MSFC research program
Author(s): Stephen L. O'Dell; William D. Jones; J. Kevin Russell; Brian D. Ramsey; Darell E. Engelhaupt; Lester M. Cohen; Leon P. Van Speybroeck
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Paper Abstract

The Constellation-X Spectroscopy X-ray Telescope (SXT) will provide high-throughput, high-resolution spectroscopy of cosmic sources, form 0.25 keV to 10 keV. Key to this capability is the development of large, lightweight optics for the SXT mirror assembly. Teams led by NASA's Marshall Space Flight Center (MSFC), by NASA's Goddard Space Flight Center (GSFC), and by Italy's Osservatorio Astronomico di Brera are currently developing competing mirror technologies for this planned mission. Each team is making significant research progress in developing mirror technologies which satisfy the SXT requirements for lightweight optics, consistent with a system-level optical performance of better than 15 arcsec half-power diameter. The NASA MSFC, in collaboration with the Smithsonian Astrophysical Observatory, has focused its efforts on full-shell replicated optics, of electroformed nickel alloys. Recent progress in identifying a surface treatment to effect low, controlled adhesion and, more significantly, in developing new high-strength nickel alloys make this a viable, low-cost approach to satisfying the SXT requirements.

Paper Details

Date Published: 22 October 1999
PDF: 9 pages
Proc. SPIE 3765, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy X, (22 October 1999); doi: 10.1117/12.366565
Show Author Affiliations
Stephen L. O'Dell, NASA Marshall Space Flight Ctr. (United States)
William D. Jones, NASA Marshall Space Flight Ctr. (United States)
J. Kevin Russell, NASA Marshall Space Flight Ctr. (United States)
Brian D. Ramsey, NASA Marshall Space Flight Ctr. (United States)
Darell E. Engelhaupt, Univ. of Alabama in Huntsville (United States)
Lester M. Cohen, Smithsonian Astrophysical Observatory (United States)
Leon P. Van Speybroeck, Smithsonian Astrophysical Observatory (United States)


Published in SPIE Proceedings Vol. 3765:
EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy X
Oswald H. W. Siegmund; Kathryn A. Flanagan, Editor(s)

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