Relativistic cross sections of electron-impact ionization of hydrogenic ions

Hsien-Chung Kao, Tien Yow Kuo, Hsiang Ping Yen, Ching Ming Wei, Keh Ning Huang

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

Total and single-differential cross sections for electron-impact ionizaton are calculated in a relativistic formulation for ions in the hydrogen isoelectronic sequence: Hi i, He ii, C vi, Ne x, Fe xxvi, and Ag xlvii. Transition amplitudes are evaluated in the two-potential distorted-wave approximation. Sets of different asymptotic charges are used to study the mutual screening of the primary and secondary electrons. Relativistic effects are investigated by taking the nonrelativistic limit and are found to increase the cross sections. Thomsons scaling law along the isoelectronic sequence is also studied.

Original languageEnglish
Pages (from-to)4646-4652
Number of pages7
JournalPhysical Review A
Volume45
Issue number7
DOIs
Publication statusPublished - 1992 Jan 1

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isoelectronic sequence
electron impact
ionization
cross sections
relativistic effects
scaling laws
ions
screening
formulations
hydrogen
approximation
electrons

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Relativistic cross sections of electron-impact ionization of hydrogenic ions. / Kao, Hsien-Chung; Kuo, Tien Yow; Yen, Hsiang Ping; Wei, Ching Ming; Huang, Keh Ning.

In: Physical Review A, Vol. 45, No. 7, 01.01.1992, p. 4646-4652.

Research output: Contribution to journalArticle

Kao, Hsien-Chung ; Kuo, Tien Yow ; Yen, Hsiang Ping ; Wei, Ching Ming ; Huang, Keh Ning. / Relativistic cross sections of electron-impact ionization of hydrogenic ions. In: Physical Review A. 1992 ; Vol. 45, No. 7. pp. 4646-4652.
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