Drift Tube Study of Symmetric Resonance Single- and Double-Charge Transfer in Kr<SUP>+</SUP>+Kr, Xe<SUP>+</SUP>+Xe, Kr<SUP>++</SUP>+Kr, and Xe<SUP>++</SUP>+Xe Systems

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  • Koizumi Tetsuo
    Department of Physics, Faculty of Science, Rikkyo University
  • Okuno Kazuhiko
    Department of Physics, Faculty of Science, Tokyo Metropolitan University
  • Kobayashi Nobuo
    Department of Physics, Faculty of Science, Tokyo Metropolitan University
  • Kaneko Yozaburo
    Department of Physics, Faculty of Science, Tokyo Metropolitan University

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  • Drift Tube Study of Symmetric Resonance Single- and Double-Charge Transfer in Kr++Kr,Xe++Xe,Kr+++Kr,and Xe+++Xe Systems
  • Drift Tube Study of Symmetric Resonance

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An injected-ion drift tube mass spectrometer is used to determine the cross sections of processes Kr++Kr→Kr+Kr+, Xe++Xe→Xe+Xe+, Kr+++Kr→Kr+Kr++, and Xe+++Xe→Xe+Xe++. The drift tube was operated with He buffer gas and cooled with liquid nitrogen so that the energy range studied was widened as from 10 meV to 10 eV. It was found that, at the lowest energy end, the energy dependence of cross section for single charge transfer deviates from that expected by linear trajectory model. For double charge transfer, the cross section below 1 eV almost coincide with the orbiting cross section with a charge transfer probability 1/2. Above 1 eV, the energy dependence of the cross section is like that for single charge transfer. Mobilities of Kr+, Xe+, Kr++, and Xe++ in He at 296 K and 82 K are presented also.

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