Calculated Neutron Capture Cross Sections to the Americium Ground and Isomeric States

The neutron capture cross sections of ²⁴¹Am and ²⁴³Am to the ground and isomeric states of ²⁴²Am and ²⁴⁴Am have been calculated using the Hauser-Feshbach statistical theory of nuclear reactions for energies from thermal to 2 MeV. The parameters for the calculations were obtained from recent data on (²⁴¹Am + n) and (²⁴³Am + n) or, where necessary, from systematics of actinide nuclei. The calculated values are in good agreement with the sparse experimental data.