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22 October 1999 Constellation-X Spectroscopy X-ray Telescope requirements and development program: MSFC research program
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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.
© (1999) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Stephen L. O'Dell, William D. Jones, J. Kevin Russell, Brian D. Ramsey, Darell E. Engelhaupt, Lester M. Cohen, and Leon P. Van Speybroeck "Constellation-X Spectroscopy X-ray Telescope requirements and development program: MSFC research program", Proc. SPIE 3765, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy X, (22 October 1999);


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