Fast-neutrons incident on holmium

Differential neutron-scattering cross-sections of Ho-165 are measured at 40 or more scattering angles and at approximate to0.5 MeV incident-energy int ervals from approximate to4.5-10.0 MeV. These results are combined with pre viously-reported neutron total and scattering cross-sections to construct a comprehensive experimental data base which is interpreted in the context o f a coupled-channels model, with attention to the collective excitation of the K = 7/2(-) ground-state rotational band. Physical aspects are discussed and comparisons made with previous models reported in the literature and w ith the relevant portions of the ENDF/B-6 evaluated nuclear data file. (C) 2001 Elsevier Science Ltd. All rights reserved.