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Report No.

Evaluation of neutron nuclear data on antimony isotopes

Shibata, Keiichi

Neutron nuclear data on $$^{121,123,124,125,126}$$Sb have been evaluated for the next release of JENDL general purpose file in the energy region from 10$$^{-5}$$ eV to 20 MeV. For $$^{121,123}$$Sb, the latest resolved resonance parameters were considered. The thermal capture cross sections of $$^{125,126}$$Sb, for which no measurements exist, were determined by using a simplified formula. The statistical model was applied to calculate the cross sections above the resolved resonance region. In the calculations, coupled-channel optical model parameters were used for the interaction between neutrons and odd-mass targets. Preequilibrium and direct-reaction processes were taken into account in addition to the compound process. The present evaluation is consistent with available experimental data. The evaluated results are compiled into an ENDF-formatted data file.



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Category:Nuclear Science & Technology



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