MSE/SSE discrimination methods of the PC-HPGe detector

MSE/SSE discrimination methods of the PC-HPGe detector
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PC-HPGe探测器的MSE/SSE判别方法

DOI:
10.1088/1674-1137/36/9/011
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发表时间:
2012-09
期刊:
影响因子:
3.6
通讯作者:
Li Yuan-Jing
Li Yuan-Jing
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Lu Zi-Feng;Li Yu-Lan;Li Jin;Yue Qian;Li Yuan-Jing

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PC-HPGe(点接触高纯锗)探测器具有低电容、低能量阈值等优点,已成功应用于中国暗物质实验(CDEX)弱相互作用大质量粒子(WIMP)的直接探测。本文介绍了PC-HPGe探测器的MSE(Multi-Site Event)和SSE(Single-Site Event)鉴别方法,包括它们的物理基础、电子学系统和实现算法。通过本研究,对PC-HPGe探测器的性能进行了深入的研究,最后给出了LE鉴别方法的实验结果。
Having advantages of low capacitance and low energy threshold, the PC-HPGe (Point-Contact High Purity 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.
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