MSE/SSE discrimination methods of the PC-HPGe detector

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...

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Bibliographic Details
Published inChinese physics C Vol. 36; no. 9; pp. 855 - 860
Main Author 吕子锋 李玉兰 李金 岳骞 李元景
Format Journal Article
LanguageEnglish
Published 01.09.2012
Subjects
Algorithms
Capacitance
China
Detectors
Discrimination
Electronic systems
HPGe探测器
Low energy
MSE
SSE
Thresholds
WIMP
判别方法
弱相互作用
能量阈值
高纯锗探测器
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Summary: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.
Bibliography:LU Zi-Feng LI Yu-Lan LI Jin YUE Qian LI Yuan-Jing（1 Department of Engineering Physics, Tsinghua University, Beijing 100084, China 2 Key Laboratory of Particle and Radiation Imaging （Tsinghua University）, Ministry of Education, Beijing 100084, China）
11-5641/O4
PC-HPGe, MSE, SSE, discrimination
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.
ObjectType-Article-2
SourceType-Scholarly Journals-1
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ISSN:1674-1137
0254-3052
DOI:10.1088/1674-1137/36/9/011