Fast Neutron Detection with a Segmented Spectrometer
arXiv:1407.6601 · doi:10.1016/j.nima.2014.10.060
Abstract
A fast neutron spectrometer consisting of segmented plastic scintillator and He-3 proportional counters was constructed for the measurement of neutrons in the energy range 1 MeV to 200 MeV. We discuss its design, principles of operation, and the method of analysis. The detector is capable of observing very low neutron fluxes in the presence of ambient gamma background and does not require scintillator pulseshape discrimination. The spectrometer was characterized for its energy response in fast neutron fields of 2.5 MeV and 14 MeV, and the results are compared with Monte Carlo simulations. Measurements of the fast neutron flux and energy response at 120 m above sea-level (39.130 deg. N, 77.218 deg. W) and at a depth of 560 m in a limestone mine are presented. Finally, the design of a spectrometer with improved sensitivity and energy resolution is discussed.
15 pages, 9 figures, published in NIM A
References in corpus (27)
- First results from the LUX dark matter experiment at the Sanford Underground Research Facility
- Dark Matter Results from 225 Live Days of XENON100 Data
- Dark Matter Results from 100 Live Days of XENON100 Data
- Results from 730 kg days of the CRESST-II Dark Matter Search
- Measurement of the solar neutrino capture rate with gallium metal. III: Results for the 2002--2007 data-taking period
- Double Beta Decay
- Muon-Induced Background Study for Underground Laboratories
- CUORE: A Cryogenic Underground Observatory for Rare Events
- CDMSlite: A Search for Low-Mass WIMPs using Voltage-Assisted Calorimetric Ionization Detection in the SuperCDMS Experiment
- Observation of Two-Neutrino Double-Beta Decay in Xe-136 with EXO-200
- Measurement of the and Total B Solar Neutrino Fluxes with the Sudbury Neutrino Observatory Phase I Data Set
- Muon and Cosmogenic Neutron Detection in Borexino
- Neutron background in large-scale xenon detectors for dark matter searches
- Neutrino Detection With CLEAN
- Fast Neutron Detection with 6Li-loaded Liquid Scintillator
- Measurement of the half-life of the two-neutrino double beta decay of Ge-76 with the Gerda experiment
- Characterization of a Li-6 loaded liquid organic scintillator for fast neutron spectrometry and thermal neutron detection
- Event Identification in He Proportional Counters Using Risetime Discrimination
- Quenching Factor for Low Energy Nuclear Recoils in a Plastic Scintillator
- Validation of spallation neutron production and propagation within Geant4
- Low-Background gamma counting at the Kimballton Underground Research Facility
- Neutron Background Studies for the CRESST Dark Matter Experiment
- Astroparticle Physics with a Customized Low-Background Broad Energy Germanium Detector
- Measuring Fast Neutrons with Large Liquid Scintillation Detector for Ultra-low Background Experiments
- Pion and neutron production by cosmic-ray muons underground
- Improved Fast Neutron Spectroscopy via Detector Segmentation
- SciBath: A Novel Tracking Detector for Measuring Neutral Particles Underground
Cited by in corpus (5)
- Background Radiation Measurements at High Power Research Reactors
- Development and Characterization of a High Sensitivity Segmented Fast Neutron Spectrometer (FaNS-2)
- The Muon-Induced Neutron Indirect Detection EXperiment, MINIDEX
- Characterization of plastic scintillator bars using fast neutrons from D-D and D-T reactions
- Design of a mobile neutron spectrometer for the Laboratori Nazionali del Gran Sasso (LNGS)