The evaluation of experimental data in fast range for n + 56Fe(n,inl)
1 China Nuclear Data Center, Science and Technology on Nuclear Data Laboratory, China Institute of Atomic Energy, PO Box 275(41) Beijing, 102413, P.R. China
2 National Nuclear Data Center, Brookhaven National Laboratory, Upton, NY 11973-5000, USA
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Published online: 13 September 2017
Iron is one of the five materials selected for evaluation within the pilot international evaluation project CIELO. Analysis of experimental data for n+56Fe reaction is the basis for constraining theoretical calculations and eventual creation of the evaluated file. The detail analysis was performed for inelastic cross sections of neutron induced reactions with 56Fe in the fast range up to 20 MeV where there are significant differences among the main evaluated libraries, mainly caused by the different inelastic scattering cross section measurements. Gamma-ray production cross sections provide a way to gain experimental information about the inelastic cross section. Large discrepancies between experimental data for the 847-keV gamma ray produced in the 56Fe(n,n1'γ) reaction were analyzed. In addition, experimental data for elastic scattering cross section between 9.41∼11 MeV were used to deduce the inelastic cross section from the unitarity constrain.
© The Authors, published by EDP Sciences, 2017
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