Total electron-impact ionization cross-sections of CFx and NFx (x = 1-3)

Winifred M. Huo, Vladimir Tarnovsky, Kurt H. Becker

Research output: Contribution to journalArticle


The discrepancy between experimental and theoretical total electron-impact ionization cross-sections of the fluorides CFx and NFx (x = 1-3) is attributed to inadequacies in previous theoretical models. Cross-sections calculated using a recently developed siBED model that takes into account the shielding of the long-range dipole potential in the collision are in agreement with experiment. The present study also re-analyzed the previously reported experimental data to account for incomplete collection of fragment ions and the presence of ion-pair formation channels. For NF3, our experimental and theoretical cross-sections compare well with the recent data of Haaland et al. in the region below dication formation.

Original languageEnglish (US)
Pages (from-to)328-336
Number of pages9
JournalChemical Physics Letters
Issue number3-4
Publication statusPublished - May 31 2002


ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Atomic and Molecular Physics, and Optics

Cite this