MSE/SSE discrimination methods of the PC-HPGe detector  

作　　者：吕子锋 李玉兰 李金 岳骞 李元景 

机构地区：[1]Department of Engineering Physics,Tsinghua University [2]Key Laboratory of Particle and Radiation Imaging(Tsinghua University),Ministry of Education

出　　处：《Chinese Physics C》2012年第9期855-860,共6页中国物理C（英文版）

基　　金：Supported by National Natural Science Foundation of China (11055002,10935005,11075090)

摘　　要：Having advantages of low capacitance and low energy threshold, the PC-HPGe （Point-Contact High Furity Germanium） detector has found its application in the direct detection of WIMP（Weak Interaction Massive Particle） in CDEX （China Darkmatter Experiment）. The MSE （Multi-Site Event） and SSE（Single-Site Event） discrimination methods of the PC-HPGe detector are introduced in this article, including their physical basis, the electronics system and the algorithms to implement them. Behaviors of the PC-HPGe detector are studied intensively through this research and finally the experimental results of the LE discrimination method are presented.Having advantages of low capacitance and low energy threshold, the PC-HPGe （Point-Contact High Furity Germanium） detector has found its application in the direct detection of WIMP（Weak Interaction Massive Particle） in CDEX （China Darkmatter Experiment）. The MSE （Multi-Site Event） and SSE（Single-Site Event） discrimination methods of the PC-HPGe detector are introduced in this article, including their physical basis, the electronics system and the algorithms to implement them. Behaviors of the PC-HPGe detector are studied intensively through this research and finally the experimental results of the LE discrimination method are presented.

关 键 词：PC-HPGe MSE SSE DISCRIMINATION 

分 类 号：TL814[核科学技术—核技术及应用]