Performance of PMTs for the JSNS2 experiment

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, Peeters, Simon and others, (2020) Performance of PMTs for the JSNS2 experiment. Journal of Instrumentation, 15. pp. 1-8. ISSN 1748-0221

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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.

Item Type: Article
Keywords: Gamma detectors (scintillators, CZT, HPGe, HgI etc), Neutrino detectors
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
SWORD Depositor: Mx Elements Account
Depositing User: Mx Elements Account
Date Deposited: 17 Jul 2020 07:37
Last Modified: 23 Feb 2022 12:06

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Project NameSussex Project NumberFunderFunder Ref
Neutrino physics using pioneering liquid scintillator detector technologyG2359ROYAL SOCIETYIES/R3/170385
STFC Experimental Particle Physics 2018 Consolidated GrantG2740STFC-SCIENCE AND TECHNOLOGY FACILITIES COUNCILST/S000798/1