The energy and angular distribution of alpha-particles from the Ar40(n,α)S37 reaction induced by 14.1 Mev neutrons were measured with an argon-gas filled cloud chamber. The angular distribution for the entire energy region is approximately symmetrical with 90° and concave upward. The energy distribution shows that the alpha-particles are more emitted than has been expected from the statistical theory.Values for the level density parameter a, the nuclear temperature T and the spin cut-off parameter σ are evaluated from these data.
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