High-energy electron-impact spectroscopy: (e, 2e) models for absolute triple differential cross sections of neon

Various models based upon the binary encounter first Born approximation have been developed to test absolute (e, 2e) experimental cross sections of the neon atom. All models are shown to possess the same qualitative behaviour but vary widely in their order of magnitude. Except for the description of the recoil peak, the Coulomb-wave formalism with an adjustable screening parameter is found to give a satisfactory approach for the quantitative description of such experiments.