Calculation of Neutron Cross Sections on ^{90;91;92;94;96}Zr for JENDL-4

Abstract

Neutron nuclear data of ^{90;91;92;94;96}Zr were calculated for the development of the 4-th version of the Japanese Evaluated Nuclear Data Library (JENDL-4) in the incident neutron energy (E_n ) range above the resolved resonance region to 20 MeV by using nuclear reaction models, such as the spherical optical model, thedistorted wave Born approximation, the Kalbach preequilibrium model, and the Hauser-Feshbach statistical model. The obtained cross sections were almost consistent with the experimental data for elastic, nonelastic and inelastic scattering, (n;γ), (n,2n), (n, p), and (n,α). The agreement with recent experiments is better than the evaluated data in JENDL-3.3 for the (n,α) cross sections on ^90,92,94Zr.

KEYWORDS:

• neutron nuclear data
• ^{90,91,92,94,96}Zr
• cross section
• energy differential cross section
• double differential cross section
• nuclear reaction model
• JENDL-3.3
• JENDL-4