Open AccessPerformance evaluation of 3 inch PMT for Hyper-Kamiokande
Author(s) -
T. Kinoshita
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2156/1/012191
Subject(s) - cherenkov radiation , detector , physics , neutrino detector , cherenkov detector , neutrino , granularity , beamline , nuclear physics , particle physics , optics , neutrino oscillation , computer science , beam (structure) , operating system
Hyper-Kamiokande is a next generation water Cherenkov detector for the study of neutrino oscillations including the search for leptonic CP violation. In order to reduce the systematic uncertainty, a 1 kton scale intermediate water Cherenkov detector (IWCD) is planned to be constructed at around 1 km downstream the J-PARC neutrino beamline. The multi-PMT modules, which consist of 19 3 inch PMTs will be installed in the IWCD to improve the detector performance with their higher granularity. We have measured the characteristics of candidate 3-inch PMTs such as gain, peak to valley ratio, timing resolution and after pulses, and checked the impact to the detector performance.