Resonance parameters for measured keV neutron capture cross sections

Abstract

All available neutron capture cross sections in the keV region (approx to 100 keV) have been fitted with resonance parameters. Capture cross sections for nuclides with reasonably well known average s-wave parameters but no measured cross section have been calculated and tabulated using p-and d- wave strength functions interpolated between fitted values. Several of these nuclides are of interest in the theory of slow nucleosynthesis of heavy elements in stars and the product of cosmic abundance (due to the s-process) and capture cross section at 30 keV has been plotted versus mass number.