Abstract
The nuclides and were discovered by chemical separations from targets of irradiated with 30-160 MeV neutrons followed by -ray and -ray spectroscopy. The parent decays with min; 14 rays ranging from 55.6 keV to 585.0 keV were assigned to its decay. The daughter half-life is 2.2±0.2 min and 39 rays following its decay have energies between 620.6 and 2370.5 keV. of is 2.7±0.2 MeV. A level scheme is proposed for in which the lowest 7 levels were previously described and 12 new levels are shown. The ground state of is assigned excited levels are proposed which accommodate most of the observed rays from decay of .
RADIOACTIVITY , from ; radiochemistry, Ge(Li) and plastic detectors. : measured , , ; deduced , , , decay scheme, , , Nilsson state assignments. : measured , , , , ; deduced , decay scheme, , , Nilsson assignments.
- Received 9 January 1979
DOI:https://doi.org/10.1103/PhysRevC.19.2332
©1979 American Physical Society