A detailed experimental investigation of the KMMÂ +Â KMNÂ +Â KNN Auger electron spectrum of 111Cd from the EC-decay of 111In

KMM, KMN and KNN Auger electron spectra of 111Cd emitted in EC-decay of 111In were analyzed at instrumental resolutions of 14 and 21 eV using a combined electrostatic spectrometer. Energies and relative intensities of 26 resolved components were determined and compared with theoretical predictions. For the first time, the predicted intermediate coupling structure of some KMM Auger lines was observed. A structure of the KNN Auger group for Z < 54 was resolved for the first time. Relative intensities of the KMM, KMN and KNN Auger groups were also determined.