UNIPOLAR CHARGE SENSING WITH COPLANAR ELECTRODES - APPLICATION TO SEMICONDUCTOR-DETECTORS

被引:274
作者
LUKE, PN
机构
[1] Engineering Division, Lawrence Berkeley Laboratory, University of California, Berkeley
关键词
D O I
10.1109/23.467848
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A novel method to perform preferential sensing of single-polarity charge carriers in ionization detectors is presented. It achieves the same function as Frisch grids commonly employed in gas ion chambers but uses a coplanar electrode configuration suitable for semiconductor detectors. Through the use of this method, good energy resolution can be obtained from room-temperature compound semiconductor detectors despite their poor hole-collection characteristics. Experiments using a CdZnTe detector demonstrate the effectiveness of this technique. Schemes to correct for electron trapping and to obtain position information are also described.
引用
收藏
页码:207 / 213
页数:7
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