Decay ofCd119andIn119Isomers

The isomers 9.5-min ${\mathrm{Cd}}^{119}$ and 2.7-min ${\mathrm{Cd}}^{119m}$ are formed in the fission of natural uranium induced by 14-Mev deuterons and fast neutrons, with the latter reaction favoring the production of the low-spin 9.5-min isomer. The decay of 18-min ${\mathrm{In}}^{119m}$, the daughter of 9.5-min ${\mathrm{Cd}}^{119}$, is characterized by $\beta$ rays with a maximum energy of 2.7 Mev and $\gamma$ rays of 0.024, 0.30, and 0.91 Mev. Some (∼5%) isomeric transition is observed. The decay of 2.0-min ${\mathrm{In}}^{119}$ is characterized by 1.6-Mev $\beta$ rays and 0.82-Mev $\gamma$ rays.