Performance of PMTs for the JSNS2 experiment

Performance of PMTs for the JSNS2 experiment

The JSNS2 (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 JSNS2 inner detector is filled with 17 tons of gadolinium-loaded liquid scintillator (LS) and both the intermediate γ-catcher...

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Veröffentlicht in:Journal of instrumentation 2020-07, Vol.15 (7)
Hauptverfasser: 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, MY, 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, SY, Kim, W, Niiyama, M, Peeters, SJ M, Ray, H, Rott, C, I Yu, Jeon, H, Jeon, S, Jung, DE, Kim, S B, Kwon, E, Lee, D H, Stancu, I, Yeh, M
Format: Artikel
Sprache:eng
Schlagworte:
Experiments
Gadolinium
INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
Neutrinos
Neutrons
Photomultiplier tubes
Scintillation counters
Spallation
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Zusammenfassung:The JSNS2 (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 JSNS2 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 either donated by other experiments or purchased from Hamamatsu. Donated PMTs were purchased around 10 years ago, therefore JSNS2 did pre-calibration of the PMTs including the purchased PMTs. 123 PMTs demonstrated acceptable performance for the JSNS2 experiment, and 120 PMTs were installed in the detector.
ISSN:1748-0221
1748-0221
DOI:10.1088/1748-0221/15/07/T07003