论文标题
液体氩探测器的$ n $/$γ$歧视能力的研究与PMT或SIPM读数
A study of liquid argon detector's $n$/$γ$ discrimination capability with PMT or SiPM readout
论文作者
论文摘要
在与暗物质直接搜索和中微子检测有关的几种当前和计划的实验中，液体氩（LAR）用作目标材料。 Argon提供了出色的脉冲辨别能力（PSD）功能，可以将电子后坐力背景与预期的核后坐力信号区分开。当PMT或三种sipms根据实验数据将LAR检测器的PSD能力模拟。结果表明，J-60035 SIPM可以帮助LAR检测器实现最高的PSD功能事件，而SIPM的后脉冲（AP）和串扰（CT）使其PSD能力恶化。此外，结果还表明，AP的影响大于CT。这对于为LAR检测器选择光传感器是有益的。
Liquid Argon (LAr) is used as a target material in several current and planned experiments related to dark matter direct searching and neutrino detection. Argon provides excellent Pulse Shape Discrimination (PSD) capability which could separate the electron recoil backgrounds from the expected nuclear recoil signals. This essay simulated the PSD capability of an LAr detector when PMTs or three kinds of SiPMs are used as photosensors based on the experimental data. The results show that the J-60035 SiPM could help the LAr detector achieve the highest PSD capability event though SiPM's After-Pulse (AP) and Cross-Talk (CT) deteriorate its PSD capability. In addition, the results also show that the effect from AP is greater than CT. This is instructive for selecting photosensors for LAr detectors.
