JSNS2实验的PMT的性能

论文标题

JSNS2实验的PMT的性能

Performance of PMTs for the JSNS2 experiment

论文作者

Park, J. S., Furuta, H., Maruyama, T., Monjushiro, S., Nishikawa, K., Taira, M., Jang, J. S., Joo, K. K., Kim, J. Y., Lim, I. T., Moon, D. H., Seo, J. H., Shin, C. D., Zohaib, A., Gwak, P., Jang, M., Ajimura, S., Hiraiwa, T., Nakano, T., Nomachi, M., Shima, T., Sugaya, Y., Cheoun, M. K., Choi, J. H., Pac, M. Y., Dodo, T., Hino, Y., Suekane, F., Ujiie, R., Harada, M., Hasegawa, S., Kasugai, Y., Meigo, S., Sakai, K., Sakamoto, S., Suzuya, K., Jordan, J. R., Spitz, J., Marzec, E., Botran, M., Kawasaki, T., Konno, T., Jang, H. I., Kang, S. K., Kim, E. J., Seo, H., Kim, S. Y., Kim, W., Niiyama, M., Peeters, S. J. M., Ray, H., Rott, C., Yu, I., Jeon, H., Jeon, S., Jung, D. E., Kim, S. B., Kwon, E., Lee, D. H., Stancu, I., Yeh, M.

论文摘要

JSNS $^{2} $（J-PARC散布中微子搜索中微子搜索中微子搜索）实验旨在在J-PARC的24 \，M缩短基线上搜索中微子振荡。 JSNS $^{2} $内部检测器充满了17吨gadolinium负载的液体闪光灯（LS），并且中间$γ$ - 捕捉器和光学分离的外部否决者都填充了未加载的LS。 120个光电倍增管（PMTS）观察到来自闪烁的光子光子。 JSNS2实验共有130个PMT均由其他实验捐赠，并从Hamamatsu购买。捐赠的PMT是在10年前大约购买的，因此JSNS $^{2} $进行了PMT的预校准，包括购买的PMT。 123个PMT显示了JSNS $^{2} $实验的可接受性能，并且在检测器中安装了120个PMT。

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 JSNS2 experiment were both donated by other experiments and 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.

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