论文标题
开发具有SIPM读数的单相液体氩检测器
Developing a single phase liquid argon detector with 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，液态氩被用作目标材料。 SIPM由于其优势比传统PMT的优势而成为闪烁体检测器的标准。在本文中，我们使用八个1 $ \ times $ 1英寸$^2 $ hamamatsu S14161-6050HS 4 $ \ times $ 4 $ 4 SIPM阵列开发了单相液体氩检测器。直接测量的光收益率为25.7 $ \ pm $ 1.6每个keV的照片电子，对应于主要由氩闪烁生成的12.8 $ \ pm $ 0.8照片电子。其余的由SIPM的串扰和后脉冲贡献。此外，我们还提供了一种实验方法来估计使用黑噪声数据对串扰和后灌注对光产量的影响。最后，我们定量地给出了液体氩检测器的慢速分量的衰减时间之间的关系。
Liquid argon is used as a target material in several current and planned experiments related to dark matter direct searching and neutrino detection. SiPM is becoming the standard for scintillator detectors because of its advantages over traditional PMT. In this paper, we developed a single-phase liquid argon detector using eight 1 $\times$1 inch$^2$ Hamamatsu S14161-6050HS 4$\times$4 SiPM arrays. The directly measured light yield is 25.7 $\pm$ 1.6 photo-electrons per keV, which corresponds to 12.8 $\pm$ 0.8 photo-electrons primarily generated by the argon scintillation. The rest is contributed by the cross-talk and after-pulse of SiPM. In addition, we provide an experimental method to estimate the effect of crosstalk and afterpulse on light yield using dark noise data. Finally, we quantitatively give the relationship between the light yield and the decay time of the slow component of a liquid argon detector.
