A Highly Efficient Neutron Veto Using Boron-Loaded Liquid Scintillator

Journal Article · Wed Apr 27 00:00:00 EDT 2011 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3579558· OSTI ID:21513212

Wright, A; Mosteiro, P; Loer, B; Calaprice, F ^[1]

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1. Department of Physics, Jadwin Hall, Princeton University, Princeton NJ, 08544 (United States)

By surrounding a dark matter detector with a layer of boron-loaded liquid scintillator, a highly efficient neutron veto can be produced. In Monte Carlo studies, a one meter thick layer of scintillator has a veto efficiency greater than 99.5% for nuclear recoil events induced by radiogenic neutrons, and a veto efficiency of more than 95% for nuclear recoil events produced by cosmogenic neutrons. The use of boron-loaded scintillator both reduces the veto-induced dead time by decreasing the neutron capture time and allows high neutron detection efficiency to be achieved in a relatively compact geometry.

• OSTI ID: 21513212
• Journal Information: AIP Conference Proceedings, Vol. 1338, Issue 1; Conference: LRT-2010: Topical workshop on low radioactivity techniques, Sudbury (Canada), 28-29 Aug 2010; Other Information: DOI: 10.1063/1.3579558; (c) 2011 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BORON
CAPTURE
COMPUTERIZED SIMULATION
DEAD TIME
EFFICIENCY
GAMMA RADIATION
LAYERS
LIQUID SCINTILLATION DETECTORS
MONTE CARLO METHOD
NEUTRON DETECTION
NEUTRON REACTIONS
NEUTRONS
NONLUMINOUS MATTER
PHOSPHORS
BARYON REACTIONS
BARYONS
CALCULATION METHODS
DETECTION
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
ELEMENTS
FERMIONS
HADRON REACTIONS
HADRONS
IONIZING RADIATIONS
MATTER
MEASURING INSTRUMENTS
NUCLEAR REACTIONS
NUCLEON REACTIONS
NUCLEONS
RADIATION DETECTION
RADIATION DETECTORS
RADIATIONS
SCINTILLATION COUNTERS
SEMIMETALS
SIMULATION
TIMING PROPERTIES