The JSNS^2 Detector
Abstract
The JSNS^2 (J-PARC Sterile Neutrino Search at J-PARC Spallation Neutron Source) experiment aims to search for oscillations involving a sterile neutrino in the eV^2 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 1MW 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^2 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^2 detector design, construction, and operation.
Cite
@article{arxiv.2104.13169,
title = {The JSNS^2 Detector},
author = {S. Ajimura and M. Botran and J. H. Choi and J. W. Choi and M. K. Cheoun and T. Dodo and H. Furuta and J. Goh and K. Haga and M. Harada and S. Hasegawa and Y. Hino and T. Hiraiwa and H. I. Jang and J. S. Jang and M. C. Jang and H. Jeon and S. Jeon and K. K. Joo and J. R. Jordan and D. E. Jung and S. K. Kang and Y. Kasugai and T. Kawasaki and E. J. Kim and J. Y. Kim and S. B. Kim and W. Kim and H. Kinoshita and T. Konno and D. H. Lee and S. Lee and I. T. Lim and E. Marzec and T. Maruyama and S. Masuda and S. Meigo and S. Monjushiro and D. H. Moon and T. Nakano and M. Niiyama and K. Nishikawa and M. Nomachi and M. Y. Pac and J. S. Park and S. J. M. Peeters and H. Ray and G. Roellinghoff and C. Rott and K. Sakai and S. Sakamoto and T. Shima and C. D. Shin and J. Spitz and I. Stancu and Y. Sugaya and F. Suekane and K. Suzuya and M. Taira and R. Ujiie and Y. Yamaguchi and M. Yeh and I. S. Yeo and C. Yoo and I. Yu and A. Zohaib},
journal= {arXiv preprint arXiv:2104.13169},
year = {2021}
}
Comments
41 pages, 29 figures