Absolute cross sections for theNi61(O16, X)reactions

Abstract

The absolute cross sections for a number of different reactions resulting from the bombardment of ${}_{}{}^{61}{}_{}{}^{}\mathrm{Ni}$ with 38.5, 41.0, 43.5, 46.0, 48.5, and 51.0 MeV ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$ ions were determined from $\gamma$-ray yields observed from the decay of resulting radioactivities, and from yields of in-beam $\gamma$ rays. The total cross section was compared to an optical-model calculation. The relative population of the reaction products was compared to calculations for the statistical decay of a compound nucleus by $n$, $p$, and $\alpha$ evaporation. This model does account for the general features of the experimental results, and agrees reasonably well with the stronger exit channels.