Auger-electron lineshapes in electron impact ionization: a calculation fornon-coincidence experiments

The distortion effects of the post-collision interaction on argon L2,3M2,3M 2,3 Auger-electron lineshapes have been calculated for 300 eV, 500 eV and 2 keV electron impact inner-shell ionization. The calculations were based on the model of Kuchiev and Sheinerman (Kuchiev M Yu and Sheinerman S A 1987 Sov. Phys.-Tech. Phys. 32 879) applying our cross section data for secondar y electrons, determined by a classical trajectory Monte Carlo method and in addition a continuum distorted wave method for 2 keV The asymmetry paramet ers of the calculated peak shapes have been examined as a function of the p rojectile energy and the Auger emission angle and for some cases compared w ith our previous experimental results.