${}^{124}\mathrm{In}$ levels populated in the $\beta$ decay of ${}^{124}\mathrm{Cd}$

The $\beta$ decay of ${}^{124}\mathrm{Cd}$ into levels in ${}^{124}\mathrm{In}$ was reinvestigated at the Holifield Radioactive Ion Beam Facility. Fifty-MeV protons were bombarded on uranium targets and the induced fission products were mass separated and deposited on a moving tape in the center of an array of $\gamma$ detectors. The resulting $\gamma -\gamma$ coincidences revealed appreciable disagreement with previous work and has resulted in a revised ordering of the low-energy states in ${}^{124}\mathrm{In}$. The resulting partial decay scheme has four energy levels, three of which are new.

Figure 1

Previously published partial decay scheme of the $\beta$ decay of ${}^{124}\mathrm{Cd}$ [3].

Figure 2

Ungated $\gamma$ spectrum showing the five peaks assigned to the decay of ${}^{124}\mathrm{Cd}$. Peaks resulting from the $\beta$ decay of other nuclei are labeled as their respective $\beta$-decaying parent.

Figure 3

The $\gamma$ spectra coincident on the transitions (a) 179.6 keV, (b) 36.5 keV, (c) 143.0 keV, and (d) 62.2 keV. The insets on the right side of the figure correspond to previous work [3], with energy values taken from that work. The insets on the left side of the figure are enlargements of the 0- to 50-keV portion of the respective spectrum.

Figure 4

Proposed partial decay scheme of ${}^{124}\mathrm{In}$.