Processes of excitation transfer in collisions of metastable atoms with ions: Matrix elements of exchange interaction
Journal Article
·
· Optics and Spectroscopy
OSTI ID:250188
- Russian State Pedagogical Univ., St. Petersburg (Russian Federation)
- Inst. of Solid-State Physics, Sofia (Bulgaria)
The processes of excitation transfer in collisions of metastable singlet and triplet helium atoms and metastable triplet neon atoms with the ground-state krypton, argon, and xenon ions are theoretically studied. Expressions for the many-electron matrix elements of exchange interaction are derived and investigated. The partial cross sections and the rate constants are calculated for the proposed multichannel model. The excited states of heavy inert gas ions are shown to be nonuniformly populated. It is predicted that the processes of collisions with the singlet metastable helium atoms are characterized by considerably smaller parameters than the processes of collisions with the triplet metastable helium atoms. The theory is compared with the available experimental data. 16 refs.
- OSTI ID:
- 250188
- Journal Information:
- Optics and Spectroscopy, Journal Name: Optics and Spectroscopy Journal Issue: 4 Vol. 79; ISSN OPSUA3; ISSN 0030-400X
- Country of Publication:
- United States
- Language:
- English
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