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The decay of mass separated x45Cs (T~=0.59s) was studied. Singles gamma and electron spectra were investigated using Ge(Li) and Si(Li) detectors. A level scheme for ~4SBa based on the application of energy sum relations is proposed. The fi-branching and logft values for the ground and excited states were deduced from the analysis of +ce-intensity balances. Spin and parity assignments based on transition multipolarities are proposed.

The decay of on-line mass separated 83Zr and SSZr sources has been studied by singles and coincident X-ray and ):-ray and conversion electron measurements. The previous level scheme of 83y is confirmed and 5 new levels have been added up to 2.74 MeV excitation. A decay scheme of 8~Zr with 40 levels up to 2.66 MeV in 8sy is deduced. The experimental observation below 2 MeV excitation in 85y agrees qualitatively with the predictions of the interacting boson-fermion model.

Independent fission yields of 88-91Br and 138-1411 produced in thermal neutron fission of 235U were determined at the SOLIS on-line isotope separator. The measurements were made for the first time using a negative surface ionization integrated target-ion source.

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