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Report No.

Updated nuclear data of lanthanoids in fission products for JENDL-4.0

Iwamoto, Nobuyuki  

The nuclear data evaluation was performed to develop the Japanese Evaluated Nuclear Data Library, JENDL-4.0, which was released on early 2010. The evaluation of fission products (e.g., Nd-Dy of lanthanoid elements) in the smooth region up to 20MeV was carried out by dividing the procedure into two parts. First, the coupled-channels optical model calculations were done to obtain the neutron transmission coefficients for target nuclides. Second, the reaction cross sections were calculated by using nuclear reaction model. The reaction cross sections for total, elastic, and inelastic scattering cross sections, and the other reaction cross sections whose channels are open were evaluated to reproduce measured cross sections. It is found that the presently obtained reaction cross sections, angular distributions and double differential cross sections of emitted particles and photons were well consistent with experimental data.



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Category:Physics, Multidisciplinary



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