Abstract
Absolute cross-section measurements are reported for electron-impact ionization of iron ions with initial charges 11+, 13+, and 15+. The data extend from below the ionization thresholds to 1500 eV for and to 1400 eV for , while the data cover the energy range from 630 to 1000 eV. Good agreement is found in each case between the measurements and detailed calculations which include the contributions due to the mechanism of inner-shell excitation-autoionization, but predicted significant enhancements of the cross section due to resonant-excitation double autoionization are not observed. Ionization rate coefficients and fitting parameters are presented based on the data.
- Received 21 November 1986
DOI:https://doi.org/10.1103/PhysRevA.35.3256
©1987 American Physical Society