Electron-impact ionization cross sections for the xenon isoelectronic sequence
- 1 June 1988
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 37 (11), 4125-4132
- https://doi.org/10.1103/physreva.37.4125
Abstract
Cross sections are presented for the direct electron-impact ionization of the 5p, 5s, and 4d subshells of the ground state of the first six members of the xenon isoelectronic sequence. The calculations were performed in a distorted-wave Born-exchange approximation including the effects of term-dependent partial waves in the ejected-electron channel and ground-state electron correlation. Shape resonances were found to significantly enhance the cross sections at low incident electron energies for Xe, , and . Term dependence in the 5kd and 4kf ejected-electron channels was also significant for these ions. Ground-state correlation was somewhat less influential, and affected the cross section only when ejected-electron term dependence was also significant.
Keywords
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