Neutron detection in the SNO+ water phase
physics.ins-det
/ Authors
Y. Liu, S. Andringa, D. Auty, F. Barão, R. Bayes, E. Caden, C. Grant, J. Grove, B. Krar, A. LaTorre
and 11 more authors
L. Lebanowski, J. Lidgard, J. Maneira, P. Mekarski, S. Nae, T. Pershing, I. Semenec, K. Singh, P. Skensved, B. Tam, A. Wright
/ Abstract
SNO+ is a multipurpose neutrino experiment located approximately 2 km underground in SNOLAB, Sudbury, Canada. The detector started taking physics data in May 2017 and is currently completing its first phase, as a pure water Cherenkov detector. The low trigger threshold of the SNO+ detector allows for a substantial neutron detection efficiency, as observed with a deployed ^{241}Am^{9}Be source. Using a statistical analysis of one hour AmBe calibration data, we report a neutron capture constant of 208.2 + 2.1(stat.) us and a lower bound of the neutron detection efficiency of 46% at the center of the detector.