keV Resonance Neutron Capture in Iron

Abstract

Resonance behaviour has been observed at a number of neutron energies between 5 and 90 keY. Transition intensities show strong fluctuations with neutron energy. The presence of p- and/or d-wave capture is inferred from the occurrence of transitions to high spin states. A distribution of reduced widths for low spin states suggests some departure from statistical processes, particularly for the strongest transitions.