Ion beam induced charge collection (IBICC) studies of cadmium zinc telluride (CZT) radiation detectors

被引：8

作者：

Doyle, BL ^{[1
]}

Vízkelethy, G ^{[1
]}

Walsh, DS ^{[1
]}

机构：

[1] Sandia Natl Labs, Rad Solid Inter & Proc Dept, Albuquerque, NM 87185 USA

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2000年 / 161卷

关键词：

D O I：

10.1016/S0168-583X(99)00929-5

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Cadmium zinc telluride (CZT) is an emerging material for room temperature radiation detectors. In order to optimize the performance of these detectors, it is important to determine how the electronic properties of CZT are related to the presence of impurities and defects that are introduced during the crystal growth and detector fabrication. At the Sandia microbeam facility IBICC lion beam induced charge collection) and time resolved IBICC (TRIBICC) were used to image electronic properties of various CZT detectors. Two-dimensional areal maps of charge collection efficiency were deduced from the measurements. In order to determine radiation damage to the detectors, we measured the deterioration of the IBICC signal as the function of dose. A model to explain quantitatively the pattern observed in the charge collection efficiency maps of the damaged detectors has been developed and applied to the data. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：457 / 461

页数：5

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