Parametrization of high light yield, energy resolution, and optical cross-talk in SiPM-based liquid argon detectors
Parametrization of high light yield, energy resolution, and optical cross-talk in SiPM-based liquid argon detectors
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基于 SiPM 的液氩探测器中高光产量、能量分辨率和光学串扰的参数化
DOI：
10.1016/j.nima.2022.167911
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发表时间：
2023
期刊：
影响因子：
--
通讯作者：
Razeto, A.
中科院分区：
文献类型：
--
作者：
Moharana, A.;Galbiati, C.;Horikawa, S.;Kachru, P.;Kochanek, I.;Kondo, K.;Razeto, A.
液化惰性气体由于具有高闪烁效率和易于大体积扩展等优点，在各种物理实验中被广泛用作探测介质。现在，这些实验正逐渐转向基于SiPM的读数，因为它们具有高光子探测效率、卓越的分辨率和相对易于使用的特点。然而，SiPM在雪崩过程中会发射光子，这被称为光学串扰，这可能会显著影响测量信号。在这项工作中，我们介绍了两个装有SiPM阵列的小型单相液氩储存室。它们显示出高达每keV 32个光电子的高毛光产生率，其中∼12被认为是由闪烁光子产生的初级光电子。然后，基于对光串扰分量的专门测量和一个简单的分析模型，我们给出了光产额、能量分辨率和光串扰的过电压依赖关系的完全参数化。
Liquefied noble gases are widely used as detector media in various physics experiments owing to their high scintillation efficiency and ease of scalability to large volumes. Now-a-days, these experiments are gradually shifting to SiPM-based readouts because of their high photon detection efficiency, superior resolution, and relative ease of use. However, SiPMs emit photons during the avalanche process, known as optical cross-talk, which can significantly affect the measured signal. In this work, we present two small single-phase liquid argon chambers equipped with SiPM arrays. They display high gross light yields up to 32 photo-electrons per keV, with∼ 12 attributed to primary photo-electrons generated by scintillation photons. We then present the full parametrization of the over-voltage dependence of the light yield, energy resolution, and optical cross-talk, based on dedicated measurements of optical cross-talk components and a simple analytical model.
液氩检测器中 PEN 和 TPB 波长转换器的直接比较
DOI：
10.1140/epjc/s10052-021-09870-7
发表时间：
2021
期刊：
The European Physical Journal C
影响因子：
--
作者：
Boulay, M. G.;Camillo, V.;Canci, N.;Choudhary, S.;Consiglio, L.;Flammini, A.;Galbiati, C.;Ghiano, C.;Gola, A.;Horikawa, S.
通讯作者：
Horikawa, S.