Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002asap.conf...52n&link_type=abstract
ASTROPHYSICS, SYMMETRIES, AND APPLIED PHYSICS AT SPALLATION NEUTRON SOURCES. Proceedings of the Workshop on ASAP 2002. Held 11-1
Astronomy and Astrophysics
Astrophysics
Scientific paper
The measurement of the neutron capture reaction of a light nucleus at astrophysical relevant energy is important for the studies of nuclear astrophysics and nuclear physics. In the measurement one can expect to detect a discrete γ-ray emitted promptly from a neutron capturing state feeding to a low-lying state of a final nucleus, since the nuclear level density of a light nucleus is low. The prompt discrete γ-ray characterizes the final nucleus and therefore its detection is crucial to unambiguously determine the small neutron capture cross section of a light nucleus. In addition the discrete γ-ray carries unique information for investigating the reaction mechanism and nuclear structure of a final nucleus. Hence we have developed a prompt discrete γ-ray detection method using pulsed neutron beams to measure the neutron-capture cross section of a nucleus. In this paper we discuss experimental results of keV neutron capture cross section measurement of a light nucleus using our method.
Igashira Masayuki
Makii Hiroyuki
Mishima Kenji
Nagai Yuki
Ohsaki Toshiro
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