Abstract
Chemically and isotopically separated sources of were used to study the level structure of . -ray data were taken with Ge(Li) detectors in the singles mode, with a Compton suppression spectrometer, and with a Ge(Li)-Ge(Li) two-parameter analyzer system in a 4096 × 2048 coincidence mode. Conversion-electron data were taken with a Si(Li) detector. From these data 146 transitions were identified in the decay of , and 130 were placed in a level scheme which included 26 definite and 1 tentatively assigned levels. Previously suggested levels at 1575.26, 1705.03, 1965.9, and 2521.40 keV were confirmed from coincidence data, while a 1129.9-keV level was not. New levels at 1756.4 and 1842.01 are established and an 1818-keV level tentatively assigned. Several new spin and parity assignments are made. Experimental results are compared with recent shell-model calculations.
- Received 24 April 1972
DOI:https://doi.org/10.1103/PhysRevC.6.1265
©1972 American Physical Society