Abstract
The decay schemes of and have been investigated using Ge(Li) and Si(Li) semiconductor detectors as well as various coincidence techniques. Gamma-ray energies and relative gamma-ray intensities were determined as well as conversion coefficients for many transitions. In , levels at 322.0 and 904.9 keV were proposed, which have not been reported earlier. The spin and parity assignments for the 332.0-keV level are probably +. In , a level at 404.8 keV has been found which was not previously known. The spin and parity assignments for this level are ½+ or +. Beta-gamma coincidence measurements were used to indicate that the 503-keV ray in decay feeds the 11/2-isomer of . Decay schemes for both and consistent with our observations have been constructed. The levels of and are compared with each other and with current theoretical calculations.
- Received 26 August 1966
DOI:https://doi.org/10.1103/PhysRev.153.1321
©1967 American Physical Society