Radioactive Decay ofIm130,Ig130, andCs130to Levels ofXe130

The level structure of ${}_{}{}^{130}{}_{}{}^{}\mathrm{Xe}$ has been determined from the $\beta$ decay of ${}_{}{}^{130}{}_{}{}^{}\mathrm{I}_{}^m{}_{}{}^{}$, ${}_{}{}^{130}{}_{}{}^{}\mathrm{I}_{}^g{}_{}{}^{}$, and ${}_{}{}^{130}{}_{}{}^{}\mathrm{Cs}$. The $\gamma$ rays emitted in the decay of these species have been observed with high-resolution Ge(Li) detectors and Ge(Li)-Ge(Li) $\gamma -\gamma$ coincidence experiments have been performed. Decay schemes for these three isotopes have been deduced. The half-life of ${}_{}{}^{130}{}_{}{}^{}\mathrm{I}_{}^g{}_{}{}^{}$ has been measured as 12.36 ± 0.01 h.