Neutrons and antimony: measurement, interpretation and evaluation

New experimental results for the elastic and inelastic scattering of ≈4→10 MeV neutrons from elemental antimony are presented. The differential measurements are made at ≈40 scattering angles and at incident neutron-energy intervals of ≈0.5 MeV. These results, those previously reported from this laboratory, and as found in the literature, are interpreted using spherical optical-statistical and dispersive-optical models, direct vibrational processes, isospin and shell effects are discussed. The results are used to construct comprehensive 121Sb and 123Sb neutronic evaluations in the ENDF/B-6 formats.