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Proceedings Paper

Application of polycapillary optics to hard x-ray astronomy
Author(s): Christine H. Russell; Walter M. Gibson; Mikhail V. Gubarev; F. A. Hofmann; Marshall K. Joy; Carolyn A. MacDonald; Lei Wang; Qi-Fan Xiao; Russell Youngman
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Paper Abstract

Polycapillary X-ray optics, which is comprised of bundles of tens of thousands to millions of hollow glass capillary tubes, can be used as concentrators of astronomical X-rays for spectroscopic studies. Measurements have been performed of transmission efficiency of straight polycapillary fibers in the range of 10-80 keV. A geometrical optics simulation has been developed which accurately models experimental results and includes the effects of surface roughness and profile error. An optic designed for 8-keV photons has been tested as a concentrator for parallel beam synchrotron radiation. The results, a factor of 65 in intensity gain, are in good agreement with optics simulation. A prototype optic designed for 10-50 keV is currently under construction with a predicted gain of more than 100. Design requirements for higher energy photons are considered. By using a small or position sensitive detector, improvements of two orders of magnitude at 80 keV are expected from the use of this type of collector.

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: 10.1117/12.278868
Show Author Affiliations
Christine H. Russell, SUNY/Albany (United States)
Walter M. Gibson, SUNY/Albany (United States)
Mikhail V. Gubarev, SUNY/Albany (United States)
F. A. Hofmann, SUNY/Albany (United States)
Marshall K. Joy, NASA Marshall Space Flight Ctr. (United States)
Carolyn A. MacDonald, SUNY/Albany (United States)
Lei Wang, SUNY/Albany (United States)
Qi-Fan Xiao, X-Ray Optical Systems, Inc. (United States)
Russell Youngman, X-Ray Optical Systems, Inc. (United States)

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

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