New beta-delayed proton precursor Ce-121

作者:Li ZK*; Xu SW; Xie YX; Ma RC; Ge YX; Wang CF; Huang WX; Zhang TM
来源:Physical Review C, 1997, 56(2): 1157-1159.

摘要

The new beta-delayed proton precursor Ce-121 was synthesized in the reaction Mo-92(S-32,3n) and first identified in p-gamma(X) coincidence measurements with a helium-jet recoil fast-moving tape-transport system. The half-life of the Ce-121 decay was determined to be 1.1+/-0.1 s. Its beta-delayed proton spectrum was observed and the beta-delayed proton branching ratio for Ce-121 decay was estimated to be similar to 1%.