Excited states in semimagic 82Ge populated in the ?ndecay of 83Ga

The ?n and ?-decay of the neutron-rich 83 Ga isotopes produced in proton-induced fission of 238 U were studied at the Holifield Radioactive Ion Beam Facility (HRIBF) at Oak Ridge National Labo- ratory using on-line mass separation and the hybrid-3Hen neutron-? detector array. Excited states in semi-magic 82 Ge populated in ?n decay of 83 Ga were identified using neutron-? coincidences. The measured relative population of excited states in 82 Ge is compared with a ?n emission model, where the neutron emission model combines the strength distribution obtained from the shell- model calculations with the statistical Hauser-Feshbach model.