Electron-Impact Total Ionization Cross Sections of CH and C₂H₂

Authors

Yong-Ki Kim, National Institute of Standards and Technology, Gaithersburg, MD
M. Asgar Ali, Howard University, Washington, DC
M. Eugene Rudd, University of Nebraska - LincolnFollow

Date of this Version

12-1997

Comments

Published in Journal of Research of the National Institute of Standards and Technology Volume 102, Number 6, November–December 1997.

Abstract

Electron-impact total ionization cross sections for the CH radical and C₂H₂ (acetylene) have been calculated using the Binary-Encounter-Bethe (BEB) model. The BEB model combines the Mott cross section and the asymptotic form of the Bethe theory, and has been shown to generate reliable ionization cross sections for a large variety of molecules. The BEB cross sections for CH and C₂H₂ are in good agreement with the available experimental data from ionization thresholds to hundreds of eV in incident energies.