Charge loss between contacts of CdZnTe pixel detectors

被引:71
作者
Bolotnikov, AE [1 ]
Cook, WR [1 ]
Harrison, FA [1 ]
Wong, AS [1 ]
Schindler, SM [1 ]
Eichelberger, AC [1 ]
机构
[1] CALTECH, Space Radiat Lab, Pasadena, CA 91125 USA
关键词
D O I
10.1016/S0168-9002(99)00388-5
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
The surface of Cd1-xZnxTe (CZT) material has high resistivity but is not a perfect dielectric. Even a small surface conductivity can affect the electric field distribution, and therefore, the charge collection efficiency of a CZT pixel detector. The paper describes studies of this phenomenon for several contact configurations made on a single CZT detector. We have determined the maximum inter-contact separation at which the surface inter-pixel charge loss can be neglected. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:326 / 331
页数:6
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