EPJ Web of Conferences
Volume 122, 2016CNR*15 - 5th International Workshop on Compound-Nuclear Reactions and Related Topics
|Number of page(s)||9|
|Section||Experiments With Neutrons|
|Published online||21 June 2016|
16O(n,α) cross section investigation using LENZ instrument at LANSCE
1 P-27, Physics Division, Los Alamos National Lab, Los Alamos, New Mexico, U.S.A.
2 XCP-5; X-Computational Physics Division, Los Alamos National Lab, Los Alamos New Mexico, U.S.A.
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Published online: 21 June 2016
Importance of studying the 16O(n,α) reaction is motivated by multiple nuclear applications. The Los Alamos Neutron Science Center (LANSCE) produces a white neutron spectrum ranging from thermal to several hundreds of MeV energies. We have recently developed the LENZ (Low Energy NZ-neutron induced charged particle detection) capability to measure high-precision (n,α) cross sections. In order to provide more reliable data, we have enhanced solid angle coverage, and improved signal-to-noise ratios and time-of-flight resolution by implementing digitizer waveform analysis. The LENZ was commissioned by studying the 59Co(n,α) reaction with neutron beams in early 2015. For the 16O(n,α) reaction, we investigate solid oxygen targets and make a relative measurement to a better known cross section, such as the 6Li(n,α) reaction in order to further reduce systematic uncertainty. We will discuss the progress of the 16O(n,α) study at LANSCE and the outlook for improving Hauser-Feshbah prediction on (n,p) reaction cross sections.
© The Authors, published by EDP Sciences, 2016
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