Elsevier

Nuclear Physics A

Volume 368, Issue 2, 28 September 1981, Pages 337-351
Nuclear Physics A

Cross-section measurements and thermonuclear reaction rates for 46Ti(p, γ)47V, 47Ti(p, γ)48V, 47Ti(p, n)47V and 48Ti(p, γ)49V

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Abstract

The yield of γ-rays from the reaction 46Ti(p, γ)47V has been measured as a function of bombarding energy over the range 0.72–3.00 MeV, from 47Ti(p, γ)48V over the range 0.74–3.50 MeV, and from 48Ti(p, γ)49V over the range 0.72–4.40 MeV. The yields of γ-rays following (p, p') reactions on all three targets were also measured and (p, p') cross sections were deduced for the first excited state proton groups for 46Ti and 48Ti and for the first ten proton groups for 47Ti. The yield of neutrons from the reaction 47Ti(p, n)47V has been measured over the range from threshold to 4.40 MeV. All these data are compared with statistical-model calculations, and good agreement is achieved. 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 nucleosysnthesis calculations.

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††

Work supported in part by the Australian Research Grants Committee(B77/15413).

Present address: Materials Research Laboratory, Defence Department, Maribyrnong, Victoria 3032, Australia.

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