Cross Section of Rb at 14 MeV Neutron Energy and the Decay of Rb

The decay of the metastable state in 84Rb has been studied by means of the 85Rb(n, 2n)84Rb and the 85Rb(γ, n)84Rb reactions. A possible but very weak feeding of excited states in 84Kr directly from the metastable state is suggested. The cross sections for the (n, 2n), (n, p) and (n, α) reactions of the target nuclei 85Rb and 87Rb were measured by the activation method with 14.8 MeV neutrons.