Ionization and charge transfer in collisions of highly charged ions with helium at low velocity
- J.R. MacDonald Laboratory, Department of Physics, Kansas State University, Manhattan, Kansas 66506-2641 (United States)
Ionization and charge transfer in slow collisions between highly charged projectiles and helium atoms are studied by the two-center atomic orbital close-coupling method within the independent electron approximation. The relative importance of single ionization to single capture is investigated. Our calculations show that ionization cross sections for C{sup 6+}, N{sup 7+}, and O{sup 8+} projectiles increase rapidly between {ital v}=1 and 2 a.u. The onset is dependent on projectile charge state. At a fixed velocity, ionization cross sections decrease with increasing projectile charge. It is also found that ionization and charge transfer occur at about the same impact parameter range.
- OSTI ID:
- 118450
- Journal Information:
- Physical Review A, Journal Name: Physical Review A Journal Issue: 4 Vol. 52; ISSN 1050-2947; ISSN PLRAAN
- Country of Publication:
- United States
- Language:
- English
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