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Proceedings Paper

Performance optimization for hard x-ray/soft gamma-ray detectors
Author(s): Fiona A. Harrison; Steven M. Kahn; Charles J. Hailey; Klaus Ziock
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Paper Abstract

This paper discusses the optimization of the performance of imaging scintillation detectors used in the hard X-ray/soft gamma-ray (20-300) keV region of the spectrum. In these devices, absorption of an incident gamma-ray within an alkali halide crystal induces a scintillation light distribution which is centroided by an imaging photomultiplier tube mounted to the crystal. The ultimate imaging resolution is strongly affected by the detailed propagation of the scintillation light within the crystal and at the interface between the crystal and the phototube face plate. A number of refined techniques for preparing the scintillation crystals so as to optimize the imaging resolution have been investigated. The results indicate very good agreement with relatively simple models of the light propagation. It is shown that it is possible to achieve resolution consistent with the most optimistic models.

Paper Details

Date Published: 1 November 1990
PDF: 6 pages
Proc. SPIE 1344, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy, (1 November 1990); doi: 10.1117/12.23288
Show Author Affiliations
Fiona A. Harrison, Univ. of California/Berkeley (United States)
Steven M. Kahn, Univ. of California/Berkeley (United States)
Charles J. Hailey, Lawrence Livermore National Lab. (United States)
Klaus Ziock, Lawrence Livermore National Lab. (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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