The nuclear structure of 193Os

Abstract

The energy levels of 193Os have been investigated using the 192Os (n, γ) 193Os reaction. Precise energy measurements of secondary γ-rays have been made with the high resolution curved crystal spectrometers and high flux of thermal neutrons available at the ILL. Primary γ-rays following average resonance capture with a mean neutron energy of 2 keV were studied at Brookhaven National Laboratory. The two sets of results have been combined with existing data to construct a level scheme up to 1300 keV incorporating a complete set of 1 2 −, 3 2 − states. Unique or limited spin assignments have been made for most of the levels. It has been shown that, as a result of the significant reduction in the fragmentation of single particle strength, the essential features of the states below 700 keV can be understood in terms of Coriolis coupled Nilsson model states.