MSE/SSE discrimination methods of the PC-HPGe detector

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LI Yu-Lan, LI Jin, YUE Qian, LI Yuan-Jing and MSE/SSE discrimination methods of the PC-HPGe detector[J]. Chinese Physics C, 2012, 36(9): 855-860. doi: 10.1088/1674-1137/36/9/011
LI Yu-Lan, LI Jin, YUE Qian, LI Yuan-Jing and MSE/SSE discrimination methods of the PC-HPGe detector[J]. Chinese Physics C, 2012, 36(9): 855-860.  doi: 10.1088/1674-1137/36/9/011 shu
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Received: 2011-12-21
Revised: 2012-02-09
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MSE/SSE discrimination methods of the PC-HPGe detector

    Corresponding author: LI Yu-Lan,

Abstract: 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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