Performance evaluation of 3 inch PMT for Hyper-Kamiokande
Performance evaluation of 3 inch PMT for Hyper-Kamiokande
复制标题
Hyper-Kamiokande 3英寸PMT性能评估
DOI：
10.1088/1742-6596/2156/1/012191
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发表时间：
2021
期刊：
影响因子：
--
通讯作者：
Kinoshita T
中科院分区：
文献类型：
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作者：
Kinoshita T
Hyper-Kamiokande是下一代水切伦科夫探测器，用于研究中微子振荡，包括寻找轻子CP破坏。为了减少系统的不确定性，一个1千吨级的中间水切伦科夫探测器（IWCD）计划在下游约1公里的J-PARC中微子束线。由19个3英寸光电倍增管组成的多光电倍增管模块将安装在IWCD中，以提高探测器的性能。我们已经测量了候选的3英寸光电倍增管的特性，如增益，峰谷比，定时分辨率和后脉冲，并检查对探测器性能的影响。
Hyper-Kamiokande is a next generation water Cherenkov detector for the study of neutrino oscillations including the search for leptonic CP violation. In order to reduce the systematic uncertainty, a 1 kton scale intermediate water Cherenkov detector (IWCD) is planned to be constructed at around 1 km downstream the J-PARC neutrino beamline. The multi-PMT modules, which consist of 19 3 inch PMTs will be installed in the IWCD to improve the detector performance with their higher granularity. We have measured the characteristics of candidate 3-inch PMTs such as gain, peak to valley ratio, timing resolution and after pulses, and checked the impact to the detector performance.