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Cross sections of proton induced reactions on 61Ni

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Excitation functions have been measured for the reactions 61Ni(p, γ)62Cu and 61Ni(p, p'γ)61Ni over the bombarding energy range 1.05-3.98 MeV, and for the reaction 61Ni(p, n)61Cu over the bombarding energy range 3.08-4.66 MeV. Cross sections for 61Ni(p, γ)62Cu, 61Ni(p, n)61Cu, and 61Ni(p, p')61Ni leading to 8 excited states of 61Ni, 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 × 108-1010 K, which includes the range of temperatures of interest in stellar nucleosynthesis calculations.

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Nuclear Physics A

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