TY - JOUR
T1 - Mass testing and characterization of 20-inch PMTs for JUNO
AU - JUNO Collaboration
AU - Abusleme, Angel
AU - Adam, Thomas
AU - Ahmad, Shakeel
AU - Ahmed, Rizwan
AU - Aiello, Sebastiano
AU - Akram, Muhammad
AU - Aleem, Abid
AU - Alexandros, Tsagkarakis
AU - An, Fengpeng
AU - An, Qi
AU - Andronico, Giuseppe
AU - Anfimov, Nikolay
AU - Antonelli, Vito
AU - Antoshkina, Tatiana
AU - Asavapibhop, Burin
AU - de André, João Pedro Athayde Marcondes
AU - Auguste, Didier
AU - Bai, Weidong
AU - Balashov, Nikita
AU - Baldini, Wander
AU - Barresi, Andrea
AU - Basilico, Davide
AU - Baussan, Eric
AU - Bellato, Marco
AU - Bergnoli, Antonio
AU - Birkenfeld, Thilo
AU - Blin, Sylvie
AU - Blum, David
AU - Blyth, Simon
AU - Bolshakova, Anastasia
AU - Bongrand, Mathieu
AU - Bordereau, Clément
AU - Breton, Dominique
AU - Brigatti, Augusto
AU - Brugnera, Riccardo
AU - Bruno, Riccardo
AU - Budano, Antonio
AU - Busto, Jose
AU - Butorov, Ilya
AU - Cabrera, Anatael
AU - Caccianiga, Barbara
AU - Cai, Hao
AU - Cai, Xiao
AU - Cai, Yanke
AU - Cai, Zhiyan
AU - Callegari, Riccardo
AU - Cammi, Antonio
AU - Campeny, Agustin
AU - Cao, Chuanya
AU - Lin, Guey Lin
N1 - Publisher Copyright:
© 2022, The Author(s).
PY - 2022/12
Y1 - 2022/12
N2 - 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 JUNO after 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-inch MCP-PMTs from Northern Night Vision Technology Co. (NNVT) and 5000 of dynode PMTs from Hamamatsu Photonics K. K.(HPK).
AB - 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 JUNO after 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-inch MCP-PMTs from Northern Night Vision Technology Co. (NNVT) and 5000 of dynode PMTs from Hamamatsu Photonics K. K.(HPK).
UR - http://www.scopus.com/inward/record.url?scp=85138851306&partnerID=8YFLogxK
U2 - 10.1140/epjc/s10052-022-11002-8
DO - 10.1140/epjc/s10052-022-11002-8
M3 - Article
AN - SCOPUS:85138851306
SN - 1434-6044
VL - 82
JO - European Physical Journal C
JF - European Physical Journal C
IS - 12
M1 - 1168
ER -