The development of hard x-ray optics at MSFC

Brian D. Ramsey; Ron F. Elsner; Darell Engelhaupt; Mikhail V. Gubarev; Jeffery J. Kolodziejczak; Stephen L. O'Dell; Chet O. Speegle; Martin C. Weisskopf

doi:10.1117/12.509619

29 January 2004 The development of hard x-ray optics at MSFC

Brian D. Ramsey, Ron F. Elsner, Darell Engelhaupt, Mikhail V. Gubarev, Jeffery J. Kolodziejczak, Stephen L. O'Dell, Chet O. Speegle, Martin C. Weisskopf

Author Affiliations +

Proceedings Volume 5168, Optics for EUV, X-Ray, and Gamma-Ray Astronomy; (2004) https://doi.org/10.1117/12.509619
Event: Optical Science and Technology, SPIE's 48th Annual Meeting, 2003, San Diego, California, United States

Abstract

We have developed the electroformed-nickel replication process to enable us to fabricate light-weight, high-quality mirrors for the hard-x-ray region. Two projects currently utilizing this technology are the production of 240 mirror shells, of diameters ranging from 50 to 94 mm, for our HERO balloon payload, and 150- and 230-mm-diameter shells for a prototype Constellation-X hard-x-ray telescope module. The challenge for the former is to fabricate, mount, align and fly a large number of high-resolution mirrors within the constraints of a modest budget. For the latter, the challenge is to maintain high angular resolution despite weight-budget-driven mirror shell thicknesses (100 μm) which make the shells extremely sensitive to fabrication and handling stresses, and to ensure that the replication process does not degrade the ultra-smooth surface finish (~3Å) required for eventual multilayer coatings. We present a progress report on these two programs.

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Brian D. Ramsey, Ron F. Elsner, Darell Engelhaupt, Mikhail V. Gubarev, Jeffery J. Kolodziejczak, Stephen L. O'Dell, Chet O. Speegle, and Martin C. Weisskopf "The development of hard x-ray optics at MSFC", Proc. SPIE 5168, Optics for EUV, X-Ray, and Gamma-Ray Astronomy, (29 January 2004); https://doi.org/10.1117/12.509619

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