Cross sections of proton induced reactions on 61Ni

Abstract

Abstract Excitation functions have been measured for the reactions 61 Ni(p, γ) 62 Cu and 61 Ni(p, p'γ) 61 Ni over the bombarding energy range 1.05–3.98 MeV, and for the reaction 61 Ni(p, n) 61 Cu over the bombarding energy range 3.08–4.66 MeV. Cross sections for 61 Ni(p, γ) 62 Cu, 61 Ni(p, n) 61 Cu, and 61 Ni(p, p') 61 Ni leading to 8 excited states of 61 Ni, were extracted from the data, and compared with the results of statistical-model calculations. The agreement is good. Thermonuclear reaction rates for the (p, γ) and (p, n) reactions are calculated for the temperature range 5 × 10 8 –10 10 K, which includes the range of temperatures of interest in stellar nucleosynthesis calculations.