Characterization of the Hamamatsu 8-inch R14688-100 PMT

Autor: Kaptanoglu, Tanner, Rincon, Ashley, Duce, Mackenzie, Kaplan, Sawyer, Koplowitz, Joseph, Lynch, Skipper, Ryoo, Hong Joo, Gann, Gabriel Orebi
Rok vydání: 2023
Předmět:
Druh dokumentu: Working Paper
DOI: 10.1088/1748-0221/19/02/P02032
Popis: Large-scale optical neutrino and dark-matter detectors rely on large-area photomultiplier tubes (PMTs) for cost-effective light detection. The new R14688-100 8-inch PMT developed by Hamamatsu provides state-of-the-art timing resolution of around 1 ns (FWHM), which can help improve vertex reconstruction and enable Cherenkov and scintillation light separation in scintillation-based detectors. This PMT also provides excellent charge resolution, allowing for precision photoelectron counting and improved energy reconstruction. The Eos experiment is the first large-scale optical detector to utilize these PMTs. In this manuscript we present a characterization of the R14688-100 single photoelectron response, such as the transit-time spreads, the dark-rates, and the afterpulsing. The single photoelectron response measurements are performed for the 206 PMTs that will be used in Eos.
Databáze: arXiv