Estimation of the ratio of double and single Auger transition rates for the L shell of Kr, Nb and Gd

Double and single Auger transition rates for the L shell of Li-like Kr, Nb and Gd ions are calculated using multiconfiguration Dirac-Fock bound-state wavefunctions. From these rates, the ratio of the cross sections for the corresponding resonant electron-transfer double-excitation and resonant electron-transfer excitation processes are derived. The values we obtained for these ratios are of the order of , consistent with recent experimental results.