Energy Levels ofPd104Populated by theβ−-Decay of 43-secRh104gand 4.41-minRh104m

The $\beta$ decay of 43-sec and 4.41-min ${}_{}{}^{104}{}_{}{}^{}\mathrm{Rh}$ has been investigated with a high-resolution Ge (Li) detector. In addition to the 16 $\gamma$ rays reported earlier, we have observed three new $\gamma$ rays of energies, 839.90, 1264.84, and 1689.1 keV. We have identified the $\gamma$ rays belonging to the 43-sec and 4.41-min decays. With the help of Ge(Li)-Ge(Li) two-parameter coincidence measurements, all 19 of the $\gamma$ rays assigned to the ${}_{}{}^{104}{}_{}{}^{}\mathrm{Rh}$ decay have been fitted into 11 excited states of ${}_{}{}^{104}{}_{}{}^{}\mathrm{Pd}$ at 555.81, 1323.59, 1333.58, 1341.68, 1792.86, 1793.83, 1820.65, 2082.38, 2181.58, 2244.9, and 2265.31 keV and one excited state in ${}_{}{}^{104}{}_{}{}^{}\mathrm{Ru}$ at 358.12 keV. The energy levels at 1323.59, 1333.58, 1341.68, and 1792.86 keV have been assigned unique spin values of 4, 0, 2, 0, respectively, from the results of NaI-Ge(Li) directional-correlation measurements.