Published May 1, 2014 | Version v1
Journal article Metadata-only

A new neutron counter for fission research

Creators

  • 1. CEA, DAM, DIF, F-91297 Arpajon (France)
  • 2. EC-JRC Institute for Reference Materials and Measurements (IRMM), Retieseweg, 2440 Geel (Belgium)
  • 3. Los Alamos Neutron Science Center, Los Alamos National Laboratory, Los Alamos, NM 87545 (United States)

Description

A new neutron counter for research experiments on nuclear fission has been developed. This instrument is designed for the detection of prompt fission neutrons within relatively high levels of gamma and neutron background. It is composed of a set of 3He proportional counters arranged within a block of polyethylene which serves as moderator. The detection properties have been studied by means of Monte Carlo simulations and experiments with radioactive sources. These properties are confirmed by an experiment on neutron-induced fission of 238U at the WNR facility of the Los Alamos Neutron Science Center during which the mean prompt fission neutron multiplicity, or ν¯ has been measured from 1 to 20 MeV of incident neutron energy

Availability note (English)

Available from http://dx.doi.org/10.1016/j.nima.2014.01.063

Additional details

Identifiers

DOI
10.1016/j.nima.2014.01.063;
PII
S0168-9002(14)00132-6;

Publishing Information

Journal Title
Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
Journal Volume
745
Journal Page Range
p. 99-105
ISSN
0168-9002
CODEN
NIMAER

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
46019733
Subject category
S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
Descriptors DEI
COMPUTERIZED SIMULATION; DESIGN; FISSION; FISSION NEUTRONS; HELIUM 3; MEV RANGE; MONTE CARLO METHOD; MULTIPLICITY; POLYETHYLENES; PROPORTIONAL COUNTERS; RADIATION DETECTION; RADIATION SOURCES; URANIUM 238
Descriptors DEC
ACTINIDE NUCLEI; ALPHA DECAY RADIOISOTOPES; BARYONS; CALCULATION METHODS; DETECTION; ELEMENTARY PARTICLES; ENERGY RANGE; EVEN-EVEN NUCLEI; EVEN-ODD NUCLEI; FERMIONS; HADRONS; HEAVY NUCLEI; HELIUM ISOTOPES; ISOTOPES; LIGHT NUCLEI; MEASURING INSTRUMENTS; NEUTRONS; NUCLEAR REACTIONS; NUCLEI; NUCLEONS; ORGANIC COMPOUNDS; ORGANIC POLYMERS; POLYMERS; POLYOLEFINS; RADIATION DETECTORS; RADIOISOTOPES; SIMULATION; SPONTANEOUS FISSION RADIOISOTOPES; STABLE ISOTOPES; URANIUM ISOTOPES; YEARS LIVING RADIOISOTOPES

Optional Information

Copyright
Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.