Decay of 2 year 102Rh

Abstract

The singles and coincidence spectra of gamma rays from the decay of 2year 102 Rh have been measured with a Ge(Li) detector and scintillation spectrometers. The energies (in keV) of the gamma rays observed are 418.5, 475.2, 632.0, 698.1, 768.3, 1046.9, 1102.7, 1111.7 and 1786. With measurements of internal conversion electrons and gamma-gamma directional correlations for several sets of cascade transitions, the following spin-parity assignments have been made for levels in 102 Ru: 475.2(2 + ), 1103(2 + and 4 + doublet), 1522(3 + ), 1870(5 + or 6 + ), 2222(5 + ) and 2261(?). The spin and parity of 2 year 102 Rh are probably assigned to be 6 + .