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Proceedings Paper

Background in a balloon-borne fluorescence-gated proportional counter
Author(s): Brian D. Ramsey; C. R. Bower; Kurtis L. Dietz; Martin C. Weisskopf
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Paper Abstract

The results of an analysis of the background in a fluorescence-gated proportional counter operating over the energy range 3-150 keV are presented. It is found that the dominant background component is that produced by high energy qamma-rays that penetrate the shields and undergo multiple scattering in the detector body, resulting in photoelectric absorption in the detector gas. A careful choice of materials and thickness can move the peak of this emission outside of the detector sensitive range, thereby dramatically reducing the residual background.

Paper Details

Date Published: 1 November 1990
PDF: 9 pages
Proc. SPIE 1344, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy, (1 November 1990); doi: 10.1117/12.23245
Show Author Affiliations
Brian D. Ramsey, NASA/Marshall Space Flight Ctr. (United States)
C. R. Bower, NASA/Marshall Space Flight Ctr. (United States)
Kurtis L. Dietz, NASA/Marshall Space Flight Ctr. (United States)
Martin C. Weisskopf, NASA/Marshall Space Flight Ctr. (United States)


Published in SPIE Proceedings Vol. 1344:
EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy
Oswald H. W. Siegmund; Hugh S. Hudson, Editor(s)

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