Relative yields of ground-state and excited-state ions of Zn, Cd and Hg in thermal-energy charge-transfer reactions of He+ ions

I. M. Littlewood*, J. A. Piper, C. E. Webb

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

The production rates of zinc, cadmium and mercury ions in their ground states, relative to those leading to excited-state formation, in thermal-energy charge-transfer collisions with He+ ions have been measured in a flowing afterglow. In the cases of cadmium and mercury cross sections for ground-state production are very small compared to those for excited-ion production. Although a full analysis of the zinc system cannot yet be carried out, it is likely that a similar result will hold. The results have been explained in terms of pre-emption of the molecular curve crossings in the Landau-Zener model. From this evidence the authors conclude that the present power limitations of the helium-metal-vapour laser are not determined by atomic processes of this type.

Original languageEnglish
Article number014
Pages (from-to)1399-1405
Number of pages7
JournalJournal of Physics B: Atomic and Molecular Physics
Volume12
Issue number8
DOIs
Publication statusPublished - 1979
Externally publishedYes

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