Decay Studies of Neutron-deficient Am, Cm, and Bk Nuclei Using an On-line Isotope Separator

抄録

The EC and α decays of neutron-deficient Am and Cm nuclei have been studied using a gas-jet coupled on-line isotope separator. Decay schemes of the EC decay of ^{235, 236}Am have been constructed, and weak α decays of ^{233, 235, 236}Am and ^{237, 238}Cm have been observed. The efficiency of the on-line mass separation of Bk nuclei was measured to be ∼1%. The Q_α values, α-decay partial half-lives, and proton-neutron configurations are discussed.