Evaluation of the upgraded 3-inch Hamamatsu photomultiplier for the KM3NeT Neutrino Telescope

the KM3NeT Collaboration

Research output: Contribution to journalArticlepeer-review

Abstract

The 3-inch Hamamatsu R14374-02 photomultiplier tube is an improved version of the R12199-02 model and its successor in the construction of the KM3NeT neutrino telescope. A total of 1000 photomultipliers were analysed to assess their dark count rate, transit time spread, and spurious pulses. A subset of 200 photomultipliers were further evaluated to determine their quantum efficiency which is an essential parameter for Monte Carlo simulations of the detector response. The measurements show that R14374-02 model has better quantum efficiency homogeneity over the photocatode and better time properties than the R12199-02.

Original languageEnglish
Article numberP07054
JournalJournal of Instrumentation
Volume20
Issue number7
DOIs
Publication statusPublished - 1 Jul 2025

Keywords

  • Cherenkov detectors
  • Neutrino detectors
  • Optics
  • Photon detectors for UV, visible and IR photons (vacuum) (photomultipliers, HPDs, others)

ASJC Scopus subject areas

  • Mathematical Physics
  • Instrumentation

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