IDENTICAL AND SHIFTED IDENTICAL BANDS

Spontaneous fission of Cm-252 was studied with 72 large Compton suppre ssed Ge detectors in Gammasphere. New isotopes Sm-160 and Gd-162 were identified. Through X-ray-gamma and gamma-gamma-gamma coincidence meas urements, level energies were established to spins 14(+) to 20(+) in N d-152,154,156(60)92,94,96, Sm-156,158,160(62)94,96,98, and Gd-160,162, (64)96,98. These nuclei exhibit a remarkable variety of identical band s and bands where the energies and moments of inertia are shifted by t he same constant amounts for every spin state from 2(+) to 12(+) for v arious combinations of nuclei differing by 2n, 4n, 2p, 4p and alpha.