Low-energy gamma-ray characterization of a trapezoidal-shaped geometrically weighted Frisch grid CdZnTe gamma-ray spectrometer

被引：4

作者：

McGregor, DS ^{[1
]}

Nishanth, JR ^{[1
]}

Wehe, DK ^{[1
]}

机构：

[1] Univ Michigan, Phoenix Mem Lab, Dept Nucl Engn & Radiol Sci, Ann Arbor, MI 48109 USA

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2001年 / 457卷 / 1-2期

关键词：

D O I：

10.1016/S0168-9002(00)00744-0

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A geometrically weighted trapezoidal CdZnTe detector has been probed along the bottom and sides with a collimated 60 keV Am-241 gamma-ray source. The results clearly show that electrons are being transported to the anode from all locations along the device bottom as well as along the sides below the grid area. Spectral differences are apparent, and the best charge transport originates from areas irradiated along the device cathode. Spectral differences are suspected to result from two major effects: charge transport interference from material non-uniformity effects and internal electric field effects. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：230 / 244

页数：15

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