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Proceedings Paper

Multilayer option for conical foil x-ray mirrors
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Paper Abstract

Multilayers used at grazing incidence offer likely the only real opportunity for extending imaging techniques in x-ray astronomy to tens of keV, or well beyond the usual upper bound when using single material reflecting surfaces. There are several reasons why conical foils are particularly suited for multilayer applications. For one thing, many of the arguments made in the past in favor of foil reflectors still hold, since multilayers do not eliminate the need of extreme oblique incidence. We show, additionally, that foil reflectors offer other important advantages which are likely to be essential toward the realization of wide band x-ray mirrors. Successful multilayer depositions on segments of our epoxy replicated foil reflectors have already been reported. In this paper we review our own efforts at multilayer deposition on replicated surface foils, addressing in detail such relevant issues as consistency, quality and uniformity of the deposits, boundary roughness and potential, stress-induced foil shape distortions. Finally, we present detailed mirror design and modeling aimed at future wide-band astronomical research.

Paper Details

Date Published: 11 July 1997
PDF: 9 pages
Proc. SPIE 3113, Grazing Incidence and Multilayer X-Ray Optical Systems, (11 July 1997); doi: 10.1117/12.278853
Show Author Affiliations
Peter J. Serlemitsos, NASA Goddard Space Flight Ctr. (United States)
Yasushi Ogasaka, Japan Society for the Promotion of Science and NASA Goddard Space Flight Ctr. (Japan)
Yang Soong, Universities' Space Research Association (United States)
Kai-Wing Chan, Universities' Space Research Association (United States)

Published in SPIE Proceedings Vol. 3113:
Grazing Incidence and Multilayer X-Ray Optical Systems
Richard B. Hoover; Arthur B. C. Walker, Editor(s)

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