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JSNS2-detector-NIM-submitted-04252021_revised_08042021.pdf (12.63 MB)

The JSNS2 detector

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journal contribution
posted on 2023-06-10, 00:45 authored by S Ajimura, M Botra, J H Choi, J W Choi, M K Cheoun, T Dodo, H Furuta, J Goh, K Haga, M Harada, S Hasegawa, Y Hino, T Hiraiwa, H I Jang, Simon PeetersSimon Peeters, others
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.

Funding

Sussex Experimental Particle Physics Capital Equipment 2019; G2560; STFC-SCIENCE AND TECHNOLOGY FACILITIES COUNCIL

Neutrino physics using pioneering liquid scintillator detector technology; G2359; ROYAL SOCIETY; IES/R3/170385

History

Publication status

  • Published

File Version

  • Accepted version

Journal

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment

ISSN

0168-9002

Publisher

Elsevier

Volume

1014

Article number

a165742

Department affiliated with

  • Physics and Astronomy Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2021-08-27

First Open Access (FOA) Date

2022-08-19

First Compliant Deposit (FCD) Date

2021-08-27

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