Evaluation of new large area PMT with high quantum efficiency

被引:13
作者
Lei, Xiang-Cui [1 ,2 ,3 ]
Heng, Yue-Kun [1 ,2 ]
Qian, Sen [1 ,2 ]
Xia, Jing-Kai [1 ,2 ,3 ]
Liu, Shu-Lin [1 ,2 ]
Wu, Zhi [1 ,2 ]
Yan, Bao-Jun [1 ,2 ]
Xu, Mei-Hang [1 ,2 ]
Wang, Zheng [1 ,2 ]
Li, Xiao-Nan [1 ,2 ]
Ruang, Xiang-Dong [4 ]
Wang, Xiao-Zhuang [1 ,5 ]
Yang, Yu-Zhen [1 ,6 ]
Wang, Wen-Wen [1 ,6 ]
Fang, Can [1 ,4 ]
Luo, Feng-Jiao [1 ,2 ,3 ]
Liang, Jing-Jing [1 ,4 ]
Yang, Lu-Ping [1 ,7 ]
Yang, Biao [1 ,2 ]
机构
[1] State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China
[2] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
[4] Guangxi Univ, Nanning 530004, Peoples R China
[5] Univ Sci & Technol China, Hefei 230026, Peoples R China
[6] Nanjing Univ, Nanjing 200093, Jiangsu, Peoples R China
[7] Henan Univ, Kaifeng 475001, Peoples R China
关键词
PMT; quantum efficiency; gain; anode dark count rate; PHOTOMULTIPLIER;
D O I
10.1088/1674-1137/40/2/026002
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
The neutrino detector of the Jiangmen Underground Neutrino Observatory (JUNO) is designed to use 20 kilotons of liquid scintillator and approximately 16 000 20 inch photomultipliers (PMTs). One of the options is to use the 20 inch R12860 PMT with high quantum efficiency which has recently been developed by Hamamatsu Photonics. The performance of the newly developed PMT preproduction samples is evaluated. The results show that its quantum efficiency is 30% at 400 nm. Its Peak/Valley (P/V) ratio for the single photoelectron is 4.75 and the dark count rate is 27 kHz at the threshold of 3 mV while the gain is at 1 x 10(7). The transit time spread of a single photoelectron is 2.86 ns. Generally the performances of this new 20 inch PMT are improved over the old one of R3600.
引用
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页数:6
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