Positron impact ionization of atomic hydrogen

G. O. Jones, M. Charlton, J. Slevin, G. Laricchia, A. Kövér, M. R. Poulsen, S. N. Chormaic

Research output: Contribution to journalArticle

84 Citations (Scopus)

Abstract

Ionization cross sections for positrons impacting on atomic hydrogen have been measured for kinetic energies in the range 15-700 eV. This has been done in a crossed-beam geometry where a magnetically guided positron beam intersects a hydrogen gas jet emanating from a radio frequency discharge tube. Electron impact ionization cross sections were also measured with the same apparatus thus facilitating comparison with, and normalization to, published results. The positron-atomic hydrogen results are found to be significantly lower than those obtained by Spicher et al.

Original languageEnglish
JournalJournal of Physics B: Atomic, Molecular and Optical Physics
Volume26
Issue number15
DOIs
Publication statusPublished - Aug 14 1993

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positrons
ionization cross sections
ionization
hydrogen
radio frequency discharge
gas discharge tubes
gas jets
electron impact
kinetic energy
geometry

ASJC Scopus subject areas

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

Cite this

Jones, G. O., Charlton, M., Slevin, J., Laricchia, G., Kövér, A., Poulsen, M. R., & Chormaic, S. N. (1993). Positron impact ionization of atomic hydrogen. Journal of Physics B: Atomic, Molecular and Optical Physics, 26(15). https://doi.org/10.1088/0953-4075/26/15/009

Positron impact ionization of atomic hydrogen. / Jones, G. O.; Charlton, M.; Slevin, J.; Laricchia, G.; Kövér, A.; Poulsen, M. R.; Chormaic, S. N.

In: Journal of Physics B: Atomic, Molecular and Optical Physics, Vol. 26, No. 15, 14.08.1993.

Research output: Contribution to journalArticle

Jones, G. O. ; Charlton, M. ; Slevin, J. ; Laricchia, G. ; Kövér, A. ; Poulsen, M. R. ; Chormaic, S. N. / Positron impact ionization of atomic hydrogen. In: Journal of Physics B: Atomic, Molecular and Optical Physics. 1993 ; Vol. 26, No. 15.
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