Abstract

The variation in intensity of 40 individual $\ensuremath{\gamma}$ rays produced by neutron capture in cobalt was observed for neutron energies less than 1500 eV. The observed variations were consistent with the existence of a direct component in the radiative capture reaction mechanism. A direct-capture cross section of 9.2\ifmmode\pm\else\textpm\fi{}2.4 mb at 1-eV neutron energy was deduced for the 7.492-MeV ground-state transition.

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