The $K-L$ conversion electron energy differences of two transitions with energies equal to 0.1131 and 0.1200 Mev were determined in a permanent magnet spectrograph. These experimental differences (0.02265 Mev) are in agreement only with the $K-L_{\mathrm{I}}$ energy difference of cadmium. Therefore neither of these transitions can follow an isomeric transition in ${\mathrm{In}}^{110m}$. Energy measurements of two other transitions (0.4614 and 0.5840 Mev) combined with the 0.1200-Mev transition energy measurement show that the 0.1200- and 0.4614-Mev transitions are not in cascade, in parallel with the 0.5840-Mev transition, as proposed by Yoshizawa.

• Received 31 May 1961

DOI:https://doi.org/10.1103/PhysRev.124.168