SPECTROSCOPY WITH LARGE GAMMA-ARRAYS IN COINCIDENCE WITH A RFD

A detector (RFD) has been developed that measures evaporation residues in coincidence with gamma-rays detected in a Ge-array. Evaporation re sidues are distinguished by time of flight from any other reaction pro ducts with different velocity, Like from fission and reactions with Li ght target impurities, and the background from these processes is elim inated. Also the energy of the gamma-rays can be Doppler corrected eve nt by event with the measured velocity vector of the emitting nucleus improving the resolution. Recent results of experiments with OSIRIS at VICKSI on (189)pb and nuclei around doubly magic Ni-56, that show the performance of the detector, are presented and the perspectives of th e RFD application with EUROBALL are discussed.