Performance optimization for hard x-ray/soft gamma-ray detectors

Fiona A. Harrison; Steven M. Kahn; Charles J. Hailey; Klaus Ziock

doi:10.1117/12.23288

1 November 1990 Performance optimization for hard x-ray/soft γ-ray detectors

Fiona A. Harrison, Steven M. Kahn, Charles J. Hailey, Klaus Ziock

Proceedings Volume 1344, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy; (1990) https://doi.org/10.1117/12.23288
Event: 34th Annual International Technical Symposium on Optical and Optoelectronic Applied Science and Engineering, 1990, San Diego, CA, United States

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.

Citation Download Citation

Fiona A. Harrison, Steven M. Kahn, Charles J. Hailey, and Klaus Ziock "Performance optimization for hard x-ray/soft γ-ray detectors", Proc. SPIE 1344, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy, (1 November 1990); https://doi.org/10.1117/12.23288

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