Identification Of Ce-152 And Unexpected Variations In Moments Of Inertia With Neutron Number And Spin In Ba-142-148, Ce-144-152 And Nd-146-156

Levels in Ce-152 are identified for the first time along with new high spin states in Ba-142-148, Ce-144-150 and Nd-150-156 from x-x, gamma-x and gamma-gamma-gamma-ray coincidence measurement in spontaneous fission of Cf-252, and Pu-242. The N = 88, 90 Ba nuclei have very nearly identical J(1) for the yrast bands (2(+) to 10(+)) and for the octupole bands (3(-) to 15(-)). The N = 92, 94 Nd nuclei have essentially identical yrast J(1) (0(+) to 16(+)).