A D2O detector for flux normalization of a pion decay-at-rest neutrino source

D. Akimov, P. An, C. Awe, P. S. Barbeau, B. Becker, V. Belov, I. Bernardi, M. A. Blackston, A. Bolozdynya, B. Cabrera-Palmer, D. Chernyak, E. Conley, J. Daughhetee, E. Day, J. Detwiler, K. Ding, M. R. Durand, Y. Efremenko, S. R. Elliott, L. FabrisM. Febbraro, A. Gallo Rosso, A. Galindo-Uribarri, M. P. Green, M. R. Heath, S. Hedges, D. Hoang, M. Hughes, T. Johnson, A. Khromov, A. Konovalov, J. Koros, E. Kozlova, A. Kumpan, L. Li, J. M. Link, J. Liu, K. Mann, D. M. Markoff, J. Mastroberti, P. E. Mueller, J. Newby, D. S. Parno, S. I. Penttila, D. Pershey, R. Rapp, H. Ray, J. Raybern, O. Razuvaeva, D. Reyna, G. C. Rich, J. Ross, D. Rudik, J. Runge, D. J. Salvat, A. M. Salyapongse, K. Scholberg, A. Shakirov, G. Simakov, G. Sinev, W. M. Snow, V. Sosnovstsev, B. Suh, R. Tayloe, K. Tellez-Giron-Flores, I. Tolstukhin, E. Ujah, J. Vanderwerp, R. L. Varner, C. J. Virtue, G. Visser, E. M. Ward, C. Wiseman, T. Wongjirad, Y. R. Yen, J. Yoo, C. H. Yu, J. Zettlemoyer

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11 Scopus citations

Abstract

We report on the technical design and expected performance of a 592 kg heavy-water-Cherenkov detector to measure the absolute neutrino flux from the pion-decay-at-rest neutrino source at the Spallation Neutron Source (SNS) at Oak Ridge National Laboratory (ORNL). The detector will be located roughly 20 m from the SNS target and will measure the neutrino flux with better than 5% statistical uncertainty in 2 years. This heavy-water detector will serve as the first module of a two-module detector system to ultimately measure the neutrino flux to 2-3% at both the First Target Station and the planned Second Target Station of the SNS. This detector will significantly reduce a dominant systematic uncertainty for neutrino cross-section measurements at the SNS, increasing the sensitivity of searches for new physics.

Original languageEnglish
Article numberP08048
JournalJournal of Instrumentation
Volume16
Issue number8
DOIs
StatePublished - Aug 2021

Keywords

  • Cherenkov and transition radiation
  • Cherenkov detectors
  • Neutrino detectors

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