Spectral performance of mercuric iodide gamma-ray detectors at elevated temperatures

Lodewijk van den Berg; Alan E. Proctor; Kenneth R. Pohl

doi:10.1117/12.506210

20 January 2004 Spectral performance of mercuric iodide gamma-ray detectors at elevated temperatures

Lodewijk van den Berg, Alan E. Proctor, Kenneth R. Pohl

Proceedings Volume 5198, Hard X-Ray and Gamma-Ray Detector Physics V; (2004) https://doi.org/10.1117/12.506210
Event: Optical Science and Technology, SPIE's 48th Annual Meeting, 2003, San Diego, California, United States

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.

Citation Download Citation

Lodewijk van den Berg, Alan E. Proctor, and Kenneth R. Pohl "Spectral performance of mercuric iodide gamma-ray detectors at elevated temperatures", Proc. SPIE 5198, Hard X-Ray and Gamma-Ray Detector Physics V, (20 January 2004); https://doi.org/10.1117/12.506210

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