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Theoretical calculation of neutron cross sections for $$^{90,91,92,94,96}$$Zr in the incident energy range between 200 keV and 20 MeV

Ichihara, Akira

Toward the revision of JENDL-4.0, neutron cross sections of $$^{90,91,92,94,96}$$Zr were calculated in the energy range between 200 keV and 20 MeV. The calculation was carried out by using nuclear reaction models such as the spherical optical model, the distorted wave Born approximation, preequilibrium models, and the multi-step statistical model. The obtained results were almost consistent with the experimental data. The cross sections were also estimated for the metastable states which had not been considered in the JENDL-4.0 evaluation. The experimental cross sections for the reactions $$^{90}$$Zr$$(n,2n)$$$$^{89m}$$Zr, $$^{91}$$Zr$$(n,x)$$$$^{90m}$$Y and $$^{91}$$Zr$$(n,nalpha)$$$$^{87m}$$Sr were well reproduced by the present calculation.

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Category:Nuclear Science & Technology

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