Performance of PMTs for the JSNS 2 experiment
Performance of PMTs for the JSNS 2 experiment
复制标题
JSNS 2 实验的 PMT 性能
DOI：
10.1088/1748-0221/15/07/t07003
复制
发表时间：
2020
影响因子：
1.3
通讯作者：
Park J
中科院分区：
文献类型：
--
作者：
Park J
JSNS 2（J-PARC Spiritual Neutrino Source的无菌中微子搜索）实验旨在在J-PARC的24米短基线上搜索中微子振荡。JSNS 2内部探测器填充有17吨的载钆液体闪烁体（LS），中间γ捕集器和光学分离的外部否决器都填充有未装载的LS。闪烁产生的可见光子由120个光电倍增管（PMT）观测。用于JSNS 2实验的130台PMT由其他实验捐赠或从滨松购买。捐赠的光电倍增管是在大约10年前购买的，因此，JSNS 2对光电倍增管进行了预先校准，包括购买的光电倍增管。123个光电倍增管证明了JSNS 2实验的可接受性能，120个光电倍增管安装在探测器中。
The JSNS 2 (J-PARC Sterile Neutrino Search at J-PARC Spallation Neutron Source) experiment aims to search for neutrino oscillations over a 24 m short baseline at J-PARC. The JSNS 2 inner detector is filled with 17 tons of gadolinium-loaded liquid scintillator (LS) and both the intermediate γ-catcher and the optically separated outer veto are filled with un-loaded LS. Optical photons from scintillation are observed by 120 Photomultiplier Tubes (PMTs). A total of 130 PMTs for the JSNS 2 experiment were either donated by other experiments or purchased from Hamamatsu. Donated PMTs were purchased around 10 years ago, therefore JSNS 2 did pre-calibration of the PMTs including the purchased PMTs. 123 PMTs demonstrated acceptable performance for the JSNS 2 experiment, and 120 PMTs were installed in the detector.