Radiochemical Evidence for theCu65(p, pπ+)Ni65Reaction

Abstract

A study of the formation of the radioactive nickel isotopes in the irradiation of copper foil with high-energy protons has shown the presence of 2.56-hr ${\mathrm{Ni}}^{65}$. The energy dependence of the cross section for the formation of this species, and its recoil properties, indicate that it is formed by the ${\mathrm{Cu}}^{65}(p, p{\pi }^{+}){\mathrm{Ni}}^{65}$ reaction.