1 October 1991 Proportional counter windows for the Bragg crystal spectrometer on AXAF
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Abstract
A Bragg Crystal Spectrometer (BCS) using a gas flow proportional counter as its primary detector is among the instruments under development for AXAF. The BCS will employ windows of 1-micron-thick polyimide coated on both sides with 200 A of Al; this window composition, while X-ray transmitting, will leak gas at a lower rate than the polypropylene film-based windows formerly employed. Accounts are given of the results obtained with additional innovative X-ray window materials currently under development, including diamond and Si-enriched Si3N4.
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Thomas H. Markert, Thomas H. Markert, James M. Bauer, James M. Bauer, Claude R. Canizares, Claude R. Canizares, Takashi Isobe, Takashi Isobe, Seppo Arvo Anter Nenonen, Seppo Arvo Anter Nenonen, J. O'Connor, J. O'Connor, Mark L. Schattenburg, Mark L. Schattenburg, Kathryn A. Flanagan, Kathryn A. Flanagan, Martin V. Zombeck, Martin V. Zombeck, } "Proportional counter windows for the Bragg crystal spectrometer on AXAF", Proc. SPIE 1549, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy II, (1 October 1991); doi: 10.1117/12.48357; https://doi.org/10.1117/12.48357
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