THE LEVEL STRUCTURE OF RU-92 UP TO HIGH-SPIN VALUES

The level structure of 92Ru has been studied by means of gamma-ray spe ctroscopy. The nucleus was produced by the Ni-58(Ca-40, alpha2p) 92Ru reaction at beam energies of 147 and 187 MeV. The NORDBALL detector sy stem including particle selection was used. A large number of new leve ls with excitation energies up to 11.3 MeV and spin values up to 22 or 23 units of angular momentum have been established. The level scheme is compared with recent shell model calculations using 100Sn as a core . Some systematics of the g-9/2(-2) configuration is discussed and a s trong correlation between the levels in Mo-90 and 92Ru is found.