Akimov, D.An, P.Awe, C.Barbeau, P. S.Becker, B.Belov, V.Bernardi, I.Blackston, M. A.Bolozdynya, A.Cabrera-Palmer, B.Chernyak, D.Conley, E.Daughhetee, J.Day, E.Detwiler, J.Ding, K.Durand, M. R.Efremenko, Y.Elliott, S. R.Fabris, L.Febbraro, M.Rosso, A. GalloGalindo-Uribarri, A.Green, M. P.Heath, M. R.Hedges, S.Hoang, D.Hughes, M.Johnson, T.Khromov, A.Konovalov, A.Koros, J.Kozlova, E.Kumpan, A.Li, L.Link, Jonathan M.Liu, J.Mann, K.Markoff, D. M.Mastroberti, J.Mueller, P. E.Newby, J.Parno, D. S.Penttila, S. I.Pershey, D.Rapp, R.Ray, H.Raybern, J.Razuvaeva, O.Reyna, D.Rich, G. C.Ross, J.Rudik, D.Runge, J.Salvat, D. J.Salyapongse, A. M.Scholberg, K.Shakirov, A.Simakov, G.Sinev, G.Snow, W. M.Sosnovstsev, V.Suh, B.Tayloe, R.Tellez-Giron-Flores, K.Tolstukhin, I.Ujah, E.Vanderwerp, J.Varner, R. L.Virtue, C. J.Visser, G.Ward, E. M.Wiseman, C.Wongjirad, T.Yen, Y. -R.Yoo, J.Yu, C. -H.Zettlemoyer, J.2024-01-222024-01-222021-08-161748-0221https://hdl.handle.net/10919/117524We 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.21 page(s)application/pdfenPublic Domain (U.S.)Membrane-coveredGas emissionBacterial communityAerobic compostingCherenkov and transition radiationCherenkov detectorsNeutrino detectorsArticle - Refereedhttps://doi.org/10.1088/1748-0221/16/08/P08048168Link, Jonathan [0000-0002-1514-0650]1748-0221