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Mass testing and characterization of 20-inch PMTs for JUNOстатья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или Scopus- Авторы: Donchenko Georgy, Kouzakov Konstantin, Lokhov Alexey, Lubsandorzhiev Bayarto, Naumov Dmitry V., Popov Artyom, Stankevich Konstantin, Studenikin Alexander, Vialkov Maxim, JUNO Collaboration
- Журнал: European Physical Journal C
- Том: 82
- Номер: 12
- Год издания: 2022
- Издательство: Springer Verlag
- Местоположение издательства: Germany
- Первая страница: 1
- Последняя страница: 42
- Номер статьи: 1168
- DOI: 10.1140/epjc/s10052-022-11002-8
- Аннотация: Main goal of the JUNO experiment is to determine the neutrino mass ordering using a 20 kt liquid scintillator detector. Its key feature is an excellent energy resolution of at least 3% at 1 MeV, for which its instruments need to meet a certain quality and thus have to be fully characterized. More than 20,000 20-inch PMTs have been received and assessed by JUNOafter a detailed testing program which began in 2017 and elapsed for about four years. Based on this mass characterization and a set of specific requirements, a good quality of all accepted PMTs could be ascertained. This paper presents the performed testing procedure with the designed testing systems as well as the statistical characteristics of all 20-inch PMTs intended to be used in the JUNO experiment, covering more than fifteen performance parameters including the photocathode uniformity. This constitutes the largest sample of 20-inch PMTs ever produced and studied in detail to date, i.e. 15,000 of the newly developed 20-nch MCP-PMTs from Northern Night Vision Technology Co. (NNVT) and 5000 of dynode PMTs from Hamamatsu Photonics K. K.(HPK).
- Добавил в систему: Кузаков Константин Алексеевич