A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Mass testing and characterization of 20-inch PMTs for JUNO (2022)
JUNO Collaboratorion. (2022). Mass testing and characterization of 20-inch PMTs for JUNO. European Physical Journal C, 82(12), Article 1168. https://doi.org/10.1140/epjc/s10052-022-11002-8
JYU-tekijät tai -toimittajat
Julkaisun tiedot
Julkaisun kaikki tekijät tai toimittajat: JUNO Collaboratorion
Lehti tai sarja: European Physical Journal C
ISSN: 1434-6044
eISSN: 1434-6052
Julkaisuvuosi: 2022
Ilmestymispäivä: 24.12.2022
Volyymi: 82
Lehden numero: 12
Artikkelinumero: 1168
Kustantaja: Springer Science and Business Media LLC
Julkaisumaa: Saksa
Julkaisun kieli: englanti
DOI: https://doi.org/10.1140/epjc/s10052-022-11002-8
Julkaisun avoin saatavuus: Avoimesti saatavilla
Julkaisukanavan avoin saatavuus: Kokonaan avoin julkaisukanava
Julkaisu on rinnakkaistallennettu (JYX): https://jyx.jyu.fi/handle/123456789/84911
Rinnakkaistallenteen verkko-osoite (pre-print): https://arxiv.org/abs/2205.08629
Tiivistelmä
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).
YSO-asiasanat: hiukkasfysiikka; neutriinot; tutkimuslaitteet
Liittyvät organisaatiot
OKM-raportointi: Kyllä
Raportointivuosi: 2022
JUFO-taso: 2
