CHARGE-TRANSPORT IN ARRAYS OF SEMICONDUCTOR GAMMA-RAY DETECTORS
CHARGE-TRANSPORT IN ARRAYS OF SEMICONDUCTOR GAMMA-RAY DETECTORS
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DOI：
10.1103/physrevlett.75.156
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发表时间：
1995-07-03
影响因子：
8.6
通讯作者：
BARBER, HB
中科院分区：
文献类型：
--
作者：
BARRETT, HH;ESKIN, JD;BARBER, HB
我们分析了电极尺寸对半导体伽玛射线探测器阵列性能的影响，特别是当有明显的电荷俘获时。对于大电极，空穴和电子的运动同样重要，但是当正极被分割成一组小元件时，空穴对输出的贡献以及空穴捕获的影响就不那么重要了。讨论了该分析对实际探测器阵列设计的意义，并对该理论进行了初步的实验验证。
We analyze the effects of electrode size on performance of arrays of semiconductor gamma-ray detectors, especially when there is significant charge trapping. With large electrodes, motions of holes and electrons are of equal importance, but when the positive electrode is segmented into an array of small elements the contributions of holes to the output, and hence the effects of hole trapping, are much less significant. The implications of this analysis for the design of practical detector arrays are discussed, and some preliminary experimental verification of the theory is presented.