The 3 He BF 3 Giant Barrel (HeBGB) neutron detector

( α,n ) reactions play an important role in nuclear astrophysics and applications and are an important background source in neutrino and dark matter detectors. Measurements of total ( α,n ) cross sections employing direct neutron detection often have a considerable systematic uncertainty associated...

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Bibliographic Details
Published in:Journal of instrumentation 2022-05, Vol.17 (5), p.P05004
Main Authors: Brandenburg, K., Hamad, G., Meisel, Z., Brune, C.R., Carter, D.E., Danley, T., Derkin, J., Jones-Alberty, Y., Kenady, B., Massey, T.N., Paneru, S., Saxena, M., Soltesz, D., Subedi, S.K., Warren, J.
Format: Article
Language:English
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Summary:( α,n ) reactions play an important role in nuclear astrophysics and applications and are an important background source in neutrino and dark matter detectors. Measurements of total ( α,n ) cross sections employing direct neutron detection often have a considerable systematic uncertainty associated with the energy-dependent neutron detection efficiency and the unknown initial neutron energy distribution. The  3 He BF 3 Giant Barrel (HeBGB) neutron detector was built at the Edwards Accelerator Laboratory at Ohio University to overcome this challenge. HeBGB offers a near-constant neutron detection efficiency of (7.5 ± 1.2)% over the neutron energy range 0.01 MeV–9.00 MeV, removing a significant source of systematic uncertainty present in earlier ( α,n ) cross section measurements.
ISSN:1748-0221
1748-0221
DOI:10.1088/1748-0221/17/05/P05004