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A facility for measurements of (n,γ) cross-sections of a nucleus in the range 0.008≤En<20 MeV

✍ Scribed by M. Segawa; Y. Toh; H. Harada; F. Kitatani; M. Koizumi; Y. Hatsukawa; T. Fukahori; H. Matsue; M. Oshima; Y. Tanimura; M. Tsutsumi; Y. Nagai

Publisher: Elsevier Science
Year: 2010
Tongue: English
Weight: 405 KB
Volume: 618
Category: Article
ISSN: 0168-9002
DOI: 10.1016/j.nima.2010.03.127

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✦ Synopsis

A new measurement system to determine the neutron-capture cross-sections of a nucleus at 0.008 r E n o 20 MeV has been installed at the 4 MV Pelletron accelerator laboratory at the facility of radiation standards at Japan Atomic Energy Agency. The performance of the new system was studied by measuring the neutron-capture reaction cross-section of nat Pb using pulsed neutrons from 7 Li(p,n) 7 Be at 12 rE n r 103 keV. Prompt g-rays from the reaction were detected by means of a highly sensitive anti-Compton NaI(Tl) spectrometer combined with a time-of-flight method. The obtained result demonstrated good sensitivity of the new system to determine the neutron-capture cross-sections of a nucleus at kiloelectron volt neutron energy.

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A facility for measurements of (n,γ) cross-sections of a nucleus in the range 0.008≤En<20&#xa0;MeV

✦ Synopsis

A facility for measurements of (n,γ) cross-sections of a nucleus in the range 0.008≤En<20 MeV