Abstract
Simple expressions are given for the cross sections and rate coefficients for populating the excited levels with n=3 in neonlike ions through the mechanism of inner-shell ionization of sodiumlike ions by electron impact. It is shown how configuration and intermediate-coupling mixing effects are easily included. Illustrative numerical results for the rate coefficients for inner-shell ionization of Na-like iron, selenium, and molybdenum are given and compared with the rate coefficients calculated by Hagelstein and Jung [Atom. Data Nucl. Data Tables 37, 121 (1987)] for populating these same excited levels by the alternative mechanism of electron-impact excitation from the ground level of the neonlike ions.
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