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Title: The veto system of the DarkSide-50 experiment

Here, nuclear recoil events produced by neutron scatters form one of the most important classes of background in WIMP direct detection experiments, as they may produce nuclear recoils that look exactly like WIMP interactions. In DarkSide-50, we both actively suppress and measure the rate of neutron-induced background events using our neutron veto, composed of a boron-loaded liquid scintillator detector within a water Cherenkov detector. This paper is devoted to the description of the neutron veto system of DarkSide-50, including the detector structure, the fundamentals of event reconstruction and data analysis, and basic performance parameters.
Authors:
 [1]
  1. Univ. Paris Diderot, CNRS/IN2P3, CEA/Irfu, Paris (France). et al.
Publication Date:
Report Number(s):
FERMILAB-PUB-15-585-AE-E; arXiv:1512.07896; SLAC-PUB-16604; LLNL-JRNL-737376
Journal ID: ISSN 1748-0221; 1411318
Grant/Contract Number:
AC02-07CH11359; AC02-76SF00515; AC52-07NA27344
Type:
Accepted Manuscript
Journal Name:
Journal of Instrumentation
Additional Journal Information:
Journal Volume: 11; Journal ID: ISSN 1748-0221
Publisher:
Institute of Physics (IOP)
Research Org:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Contributing Orgs:
DarkSide Collaboration; Darkside Collaboration
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Dark Matter; DarkSide; neutron detection; liquid scintillator detector; water Cherenkov detector; experiment-HEP; INST; neutron detectors (cold, thermal, fast neutrons); scintillators; scintillation and light emission processes (solid, gas and liquid scintillators); Dark Matter detectors (WIMPs, axions, etc.); Cherenkov and transition radiation; 79 ASTRONOMY AND ASTROPHYSICS
OSTI Identifier:
1261070
Alternate Identifier(s):
OSTI ID: 1244526; OSTI ID: 1378531