Recombination of H+3 ions in the afterglow of a He-Ar-H2 plasma

J. Glosik, I. Korolov, R. Plasil, O. Novotny, T. Kotrik, P. Hlavenka, J. Varju, I. A. Mikhailov, V. Kokoouline, Chris H. Greene

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Abstract

Recombination of H+3 with electrons is studied in a low-temperature plasma containing He, H2 and Ar at different He and H2 densities. The effective plasma recombination rate is driven by binary, H+3 + e-, and ternary, H +3 + e-+ He, processes with the rate coefficients 7.5 × 10-8 cm3 s-1 and 2.8 × 10-25 cm6 s-1 respectively at 260 K. We suggest that the ternary recombination involves formation of neutral highly excited Rydberg H3 followed by an l-changing collision with He. The difference between recombination of para- and ortho-H+3 is discussed.

Original languageEnglish
Article number191001
JournalJournal of Physics B: Atomic, Molecular and Optical Physics
Volume41
Issue number19
DOIs
Publication statusPublished - Oct 14 2008

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ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics

Cite this

Glosik, J., Korolov, I., Plasil, R., Novotny, O., Kotrik, T., Hlavenka, P., Varju, J., Mikhailov, I. A., Kokoouline, V., & Greene, C. H. (2008). Recombination of H+3 ions in the afterglow of a He-Ar-H2 plasma. Journal of Physics B: Atomic, Molecular and Optical Physics, 41(19), [191001]. https://doi.org/10.1088/0953-4075/41/19/191001