Inelastic Scattering of 390-V Electrons by Helium, Hydrogen, Methane, Ethane, Cyclohexane, Ethylene, and Water

Abstract

Electron impact spectra obtained by the inelastic scattering of 390-V electrons from helium, hydrogen, methane, ethane, cyclohexane, ethylene, and water are given. It is shown experimentally that, at small scattering angles and a fixed velocity-analyzer setting, the scattered current as a function of pressure contains a maximum. The theory of this effect is discussed.