DETAILED LEVEL SCHEME OF TB-151 AND THE FEEDING OF THE NORMAL-DEFORMED STATES BY THE SUPERDEFORMED BANDS

Excited states in the nucleus Th-151 have been investigated up to spin 91/2hBAR and energy 16.5 MeV using the (Te(Al, 6n))-Te-130-Al-27 reac tion and the EUROGAM array. The theoretical interpretation of the leve l scheme has been performed in the framework of the deformed independe nt particle model. The feeding patterns of the normal-deformed states by both the yrast and first excited superdeformed bands have also been established. The results indicate that the decay-out mechanism of the bands is not of purely statistical nature, but depends on the configu rations of both normal- and superdeformed states.