Comparison of 5 and 10 mm thick HgI2 pixelated γ-ray spectrometers

被引：33

作者：

Baciak, JE ^{[1
]}

He, Z ^{[1
]}

机构：

[1] Univ Michigan, Ann Arbor, MI 48109 USA

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2003年 / 505卷 / 1-2期

关键词：

mercuric iodide; room temperature; compound semiconductor; gamma-ray detectors;

D O I：

10.1016/S0168-9002(03)01049-0

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

HgI2 detectors fabricated with pixelated anodes were tested as potential room temperature spectrometers. Spectra were obtained with 5 and 10 mm thick devices, and their results were compared. The 5 mm thick devices showed some effect of the anode weighting potential, while the 10 mm thick devices showed the effects of charge diffusion/sharing and electron trapping. A resolution near 1.4% FWHM using a Cs-137 source was achieved after correcting for the interaction depth within the detector. The resolution from individual depths was as low as approximately 1.1% FWHM. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：191 / 194

页数：4

共 6 条

[1] Electron trapping variations in single-crystal pixelated HgI2 gamma-ray spectrometers [J].