The 54Fe(α, n)57Ni and 54Fe(α, p)57Co cross sections

Details The 54Fe(α, n)57Ni and 54Fe(α, p)57Co cross sections The 54Fe(α, n)57Ni and 54Fe(α, p)57Co cross sections

Mar 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991nupha.524..479t&link_type=abstract

Nuclear Physics A, Volume 524, Issue 3, p. 479-494.

Physics

Nuclear Physics

5

Nuclear Reactions

Scientific paper

The cross sections of 54Fe(α, n)57Ni and 54Fe(α, p)57Co have been measured over bombarding energy ranges of 6.35-9.50 MeV and 5.31-9.59 MeV, respectively. The 54Fe(α, n)57Ni measurements were based on observation of neutrons by means of a 4π detector and also on observation of 57Co γ-rays associated with the β-decay of 57Ni. The 54Fe(α, p)57Co measurements were made with a surface barrier detector at 125°. The cross sections have been compared with the predictions of statistical-model calculations made with a number of different optical-model parameter sets. Thermonuclear reaction rates at temperatures representative of those encountered in freeze-out from nuclear statistical equilibrium in supernovae have been calculated.

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