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arXiv · 2311.05080

Characterization of the Hamamatsu 8-inch R14688-100 PMT

Tanner Kaptanoglu·Ashley Rincon·Mackenzie Duce·Sawyer Kaplan·Joseph Koplowitz·Skipper Lynch·Hong Joo Ryoo·Gabriel Orebi Gann
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Abstract

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.

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Tanner Kaptanoglu, Ashley Rincon, Mackenzie Duce, Sawyer Kaplan, Joseph Koplowitz, Skipper Lynch, Hong Joo Ryoo, Gabriel Orebi Gann. 2023-11-09. Characterization of the Hamamatsu 8-inch R14688-100 PMT. https://doi.org/10.1088/1748-0221/19/02/p02032

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