Contributions of excitation autoionization to the electron-impact ionization ofMg+,Al2+, andSi3+in the distorted-wave approximation with exchange
- 1 January 1982
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 25 (1), 154-160
- https://doi.org/10.1103/physreva.25.154
Abstract
The contributions of excitation autoionization to electron-impact ionization in the Nalike ions , , and are calculated using the distorted-wave approximation with exchange. Inner-shell excitations of the type are included. The calculations indicate that the largest contribution should be due to the excitations in all three elements, although the relative importance of this transition decreases with ionic charge. Comparisons of these results with recent experimental measurements indicate that the distorted-wave approximation overestimates the magnitude of the monopole-dominated transitions. Possible reasons for this discrepancy between experiment and theory are discussed, and additional calculations and experiments are suggested.
Keywords
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