Experimental and theoretical total cross sections for single and double ionization of the open-$4d$-shell ions Xe${}^{12+}$, Xe${}^{13+}$, and Xe${}^{14+}$ by electron impact

Abstract

We present new experimental and theoretical cross sections for electron-impact single ionization of Xe${}^{12+}$ and Xe${}^{13+}$ ions, and double ionization of Xe${}^{12+}$, Xe${}^{13+}$ and Xe${}^{14+}$ ions for collision energies from the respective ionization thresholds up to 3500 eV. The calculations use the fully relativistic subconfiguration-averaged distorted-wave (SCADW) approach and, partly, the more detailed level-to-level distorted wave (LLDW) method. We find that, unlike in previous work, our theoretical cross sections agree with our experimental ones within the experimental uncertainties, except for the near-threshold double-ionization cross sections. We attribute this remaining discrepancy to the neglect of direct-double ionization in the present theoretical treatment.

arXiv comment12 pages, 9 figures, 1 table

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• Atomic Data for X-ray Astrophysics
• The Impact of Recent Advances in Laboratory Astrophysics on our Understanding of the Cosmos
• Electron-Impact Multiple Ionization Cross Sections for Atoms and Ions of Helium through Zinc
• Electron-impact single ionisation of W14+ ions: Subconfiguration-average and level-to-level distorted wave calculations
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Cited by in corpus (1)

• Commissioning of a fast fine-step electron-energy-scan system for electron-ion crossed-beams experiments