Single and double ionization of helium by hydrogen-atom impact

R. D. Dubois, A. Kövér

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

Cross sections for single and double ionization of helium resulting from pure ionization and from electron transfer (capture or loss) are reported for 251000-keV/u hydrogen-atom impact. The single-target ionization data are compared with existing first Born calculations. Good agreement is found above 200 keV, and inadequacies for specific channels at lower energies are identified. Double-target ionization is shown to occur more frequently for H0 impact than for fast electron or proton impact. It is also demonstrated that, for impact energies greater than 150 keV, double ionization of helium results from a single projectile-target interaction.

Original languageEnglish
Pages (from-to)3605-3612
Number of pages8
JournalPhysical Review A
Volume40
Issue number7
DOIs
Publication statusPublished - 1989

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hydrogen atoms
helium
ionization
proton impact
electron impact
projectiles
electron transfer
energy
cross sections
interactions

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Atomic and Molecular Physics, and Optics

Cite this

Single and double ionization of helium by hydrogen-atom impact. / Dubois, R. D.; Kövér, A.

In: Physical Review A, Vol. 40, No. 7, 1989, p. 3605-3612.

Research output: Contribution to journalArticle

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