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Title: Background radiation measurements at high power research reactors

Research reactors host a wide range of activities that make use of the intense neutron fluxes generated at these facilities. Recent interest in performing measurements with relatively low event rates, e.g. reactor antineutrino detection, at these facilities necessitates a detailed understanding of background radiation fields. Both reactor-correlated and naturally occurring background sources are potentially important, even at levels well below those of importance for typical activities. Here we describe a comprehensive series of background assessments at three high-power research reactors, including γ-ray, neutron, and muon measurements. For each facility we describe the characteristics and identify the sources of the background fields encountered. Furthermore, the general understanding gained of background production mechanisms and their relationship to facility features will prove valuable for the planning of any sensitive measurement conducted therein.
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Publication Date:
Report Number(s):
BNL-111723-2016-JA; LLNL-JRNL-669986
Journal ID: ISSN 0168-9002; R&D Project: CO001; KB0401022
Grant/Contract Number:
SC00112704; AC52-07NA27344; AC02-05CH11231; AC05-00OR22725
Accepted Manuscript
Journal Name:
Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
Additional Journal Information:
Journal Volume: 806; Journal Issue: C; Journal ID: ISSN 0168-9002
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Contributing Orgs:
The Prospect Collaboration
Country of Publication:
United States
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; research reactors; background measurements; reactor antineutrino detection; 22 GENERAL STUDIES OF NUCLEAR REACTORS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; HFIR; high flux isotope reactor antineutrino detection; neutrino; experiment; detector; scintillator; gamma; neutron; muon; 61 RADIATION PROTECTION AND DOCIMETRY
OSTI Identifier:
Alternate Identifier(s):
OSTI ID: 1256800; OSTI ID: 1349759; OSTI ID: 1367997; OSTI ID: 1456929