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Proceedings Paper

Spectral performance of mercuric iodide gamma-ray detectors at elevated temperatures
Author(s): Lodewijk van den Berg; Alan E. Proctor; Kenneth R. Pohl
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Paper Abstract

The effects of elevated temperatures on the spectral performance of a planar mercuric iodide (HgI2) gamma ray detector were evaluated at 25°C, 35°C, 45°C and 55°C using two test isotopes. 137Cs at 662 keV and 241Am at 59 keV. Spectral analysis was used to determine the spectral parameters (i.e. %FWHM of the full energy peak, the peak channel position and the peak to background ratio). Spectral performance degraded slightly with increasing test temperatures, but recovered on returning to ambient conditions. The results demonstrate that temperature excursions up to 55°C minimally degrade the spectral performance of mercuric iodide detectors.

Paper Details

Date Published: 20 January 2004
PDF: 6 pages
Proc. SPIE 5198, Hard X-Ray and Gamma-Ray Detector Physics V, (20 January 2004); doi: 10.1117/12.506210
Show Author Affiliations
Lodewijk van den Berg, Constellation Technology Corp. (United States)
Alan E. Proctor, Constellation Technology Corp. (United States)
Kenneth R. Pohl, Constellation Technology Corp. (United States)


Published in SPIE Proceedings Vol. 5198:
Hard X-Ray and Gamma-Ray Detector Physics V
Larry A. Franks; Arnold Burger; Ralph B. James; Paul L. Hink, Editor(s)

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