Design and Construction of hundred-ton liquid neutrino detector at CJPL II

Xu, Benda

doi:10.22323/1.414.0926

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2023

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“…The Jinping Neutrino Experiment (JNE) under construction is a hundred-ton liquid scintillator detector with Cherenkov and scintillation light readout at CJPL II [1,2] with 2400 m rock overburden, targeting solar, terrestrial and supernovae neutrinos [3,4,5,6].…”

Section: Introductionmentioning

confidence: 99%

Performance evaluation of the 8-inch MCP-PMT for Jinping Neutrino Experiment

Zhang¹,

Xu²,

Wei³

et al. 2023

Preprint

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Jinping Neutrino Experiment plans to deploy a new type of 8-inch MCP-PMT with high photon detection efficiency for MeV-scale neutrino measurements. This work studies the performance of the MCP-PMTs, including the photon detection efficiency, the charge resolution of the single photoelectron, the transition time spread, single photoelectron response, rates of dark counts and after pulses. We find a long tail in the charge distribution, and combined with the high photon detection efficiency, the overall energy resolution sees substantial improvements. Those results will be provided as the inputs to detector simulation and design. Our results show that the new PMT satisfies all the requirements of the Jinping Neutrino Experiment.

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