A photon counting pixel chip with energy windowing

被引:58
作者
Fischer, P
Helmich, A
Lindner, M
Wermes, N
Blanquart, L
机构
[1] Univ Bonn, Inst Phys, D-53115 Bonn, Germany
[2] CNRS, IN2P3, Ctr Phys Particules, F-13288 Marseille 9, France
关键词
D O I
10.1109/23.856711
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 method allowing single photon counting with an additional energy information without increasing the radiation dose is presented. On a pixel chip an energy window has been realised by introducing a second discriminator with a separate counter in every pixel. Both discriminators have an independent threshold voltage and can be adjusted individually. Measurements on the noise behavior, threshold variation and threshold settings are presented.
引用
收藏
页码:881 / 884
页数:4
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