Nuclear Reactions of Cobalt with Protons from 0- to 100-Mev Energy

Abstract

Absolute excitation functions for 0- to 100-Mev protons on cobalt have been measured for 18 radioactive products from vanadium through nickel. Linear-accelerator bombardments in the 0- to 30-Mev region plus a scattered-beam cyclotron technique gave good energy resolution. The results are in qualitative agreement with the Bohr compound nucleus picture at low energies and a mixture of the Bohr and Serber mechanisms at higher energies. Evidence for high yields of alpha-particle emission was found. The influence of shell structure on yields was pronounced, with magic-number nuclei having especially low yields.