Comparison of K-shell ionization cross sections of Si in solid and gas targets for Fq+ + Si collisions (q=4-9) at 1 and 2 MeV/amu

H. Tawara, Patrick Richard, Tom J. Gray, P. Pepmiller, J. R. MacDonald, Thomas R Dillingham

Research output: Contribution to journalArticle

16 Scopus citations


The authors determine K x-ray production cross sections and K-shell fluorescence yields in solid Si and gaseous SiH4 as a function of incident-projectile charge state for a F beam at 1 and 2 MeV/amu. Discrepancies between solid- and gas-target results are observed in both the x-ray production cross section and fluorescence yield. It is found, however, that the ionization cross section (x-ray production cross section divided by fluorescence yield) is independent of target physical state for each incident-projectile charge state.

Original languageEnglish (US)
Pages (from-to)2131-2133
Number of pages3
JournalPhysical Review A
Issue number5
StatePublished - 1979
Externally publishedYes


ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Atomic and Molecular Physics, and Optics

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