Ajimura, S, Botra, M, Choi, J H, Choi, J W, Cheoun, M K, Dodo, T, Furuta, H, Goh, J, Haga, K, Harada, M, Hasegawa, S, Hino, Y, Hiraiwa, T, Jang, H I, Peeters, S J M and others, (2021) The JSNS2 detector. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 1014. a165742. ISSN 0168-9002

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Abstract

The JSNS (J-PARC Sterile Neutrino Search at J-PARC Spallation Neutron Source) experiment aims to search for oscillations involving a sterile neutrino in the eV mass-splitting range. The experiment will search for the appearance of electron antineutrinos oscillated from muon antineutrinos. The electron antineutrinos are detected via the inverse beta decay process using a liquid scintillator detector. A 1 MW beam of 3 GeV protons incident on a spallation neutron target produces an intense and pulsed neutrino source from pion, muon, and kaon decay at rest. The JSNS detector is located 24 m away from the neutrino source and began operation from June 2020. The detector contains 17 tonnes of gadolinium (Gd) loaded liquid scintillator (LS) in an acrylic vessel, as a neutrino target. It is surrounded by 31 tonnes of unloaded LS in a stainless steel tank. Optical photons produced in LS are viewed by 120 R7081 Hamamatsu 10-inch Photomultiplier Tubes (PMTs). In this paper, we describe the JSNS detector design, construction, and operation.

Item Type:	Article
Keywords:	Neutrinos, Detector Development
Schools and Departments:	School of Mathematical and Physical Sciences > Physics and Astronomy
SWORD Depositor:	Mx Elements Account
Depositing User:	Mx Elements Account
Date Deposited:	27 Aug 2021 07:39
Last Modified:	19 Aug 2022 01:00
URI:	http://sro.sussex.ac.uk/id/eprint/101329

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