Author:
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.
Abstract
Abstract
(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
3He BF3 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.
Subject
Mathematical Physics,Instrumentation
Cited by
5 articles.
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