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%.
- 出版日期1997-8
- 单位中国科学院近代物理研究所