Resonance Parameters of 58Ni + n and 60Ni + n from Very High Resolution Transmission Measurements
very high resolution neutron transmission measurements of enriched 58Ni and 60Ni samples were performed in the energy ranges 14eV up to 7.5MeV and 40eV up to 30MeV respectively. Time-of-flight and 1ns linac bursts were used to measure neutron energies. Total cross section data from 3 sample thicknesses have been analysed with an R-matrix multi-level code to deduce parameters of 72 resonances in 58Ni and 208 in 60Ni up to 305 and 550keV respectively, and the s-wave strength functions and average level spacings.
KeywordsTransmission 58Ni and 60Ni Eo, Γn,J,l,R,So, Do energy ranges up to 305 and 550keV resp.
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