Charge sharing effect on 600 μm pitch pixelated CZT detector for imaging applications

被引：5
|
作者：
Yin Yong-Zhi [1 ]
Liu Qi [1 ]
Xu Da-Peng [1 ]
Chen Xi-Meng [1 ]
机构：
[1] Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Peoples R China
来源：
CHINESE PHYSICS C | 2014年 / 38卷 / 11期
关键词：
CZT detector; charge sharing; energy resolution; CDZNTE DETECTOR; HIGH-RESOLUTION; ARRAYS;
D O I：
10.1088/1674-1137/38/11/116002
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
We are currently investigating the spatial resolution of highly pixelated Cadmium Zinc Telluride (CZT) detector for imaging application. A 20 mmx20 mmx5 mm CZT substrate was fabricated with 600 mu m pitch pixels (500 mu m anode pixels with 100 mu m gap) and coplanar cathode. Charge sharing between two pixels was studied using collimated a 122 keV gamma ray source. Experiments show a resolution of 125 mu m FWHM for double-pixel charge sharing events when the 600 mu m pixelated and 5 mm thick CZT detector biased at 1000 V. In addition, we analyzed the energy response of the 600 mu m pitch pixelated CZT detector.
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页数：5
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