LEVELS OF CE-146 STUDIED THROUGH THE DECAY OF HIGH-SPIN ISOMER OF LA-146

The decay of 10.0 s high-spin isomer of 146La to levels of 146Ce has b een studied using the on-line isotope separator KUR-ISOL. Gamma-ray si ngles, gamma - gamma coincidence and conversion-electron spectra have been measured. A level scheme containing 90 levels and 206 gamma-ray t ransitions has been constructed for 146Ce, populated in the decay of t he high-spin isomer of 146La. Among these, 39 levels are reported for the first time. Spins and parities for some levels are proposed on the basis of gamma-decay mode, logft values and conversion-electron measu rements. The band structure of the low-lying levels in 146Ce is discus sed.