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Proceedings Paper

Development of a model for gamma-ray spectra generation using pixelated mercuric iodide detectors
Author(s): James E. Baciak; Zhong He
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Paper Abstract

Recent studies have shown that pixelated HgI2 detectors with a thickness of 1 cm can yield energy resolutions of 1.4 - 2% FWHM at 662 keV γ-ray energy, which are similar to that obtained on 3-dimensional position sensitive CdZnTe detectors of the same thickness. However, there is a need to better understand the electron transportation and induced charge from the drift of charges within the detector in order to better understand the spectra obtained from HgI2 detectors. The results of a simple simulation model accounting for electron trapping and various weighting potentials is compared with recent physical spectra obtained from pixelated HgI2 detectors of 5 mm and 10 mm thickness.

Paper Details

Date Published: 10 January 2003
PDF: 9 pages
Proc. SPIE 4784, X-Ray and Gamma-Ray Detectors and Applications IV, (10 January 2003); doi: 10.1117/12.455979
Show Author Affiliations
James E. Baciak, Univ. of Michigan (United States)
Zhong He, Univ. of Michigan (United States)

Published in SPIE Proceedings Vol. 4784:
X-Ray and Gamma-Ray Detectors and Applications IV
Ralph B. James; Edwin M. Westbrook; Roger D. Durst; Larry A. Franks; Arnold Burger; Edwin M. Westbrook; Roger D. Durst, Editor(s)

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