Rd. Dubois et St. Manson, THE INFLUENCE OF PROJECTILE ELECTRON TARGET ELECTRON INTERACTIONS ON ELECTRON-EMISSION IN FAST IONIZING COLLISIONS, Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 86(1-2), 1994, pp. 161-164
The influence of projectile-electron-target-electron (e-e) interaction
s leading to ionization is examined, both theoretically and experiment
ally, for various collision systems. Among our conclusions, we find th
at e-e interactions dominate the low energy electron emission in fast
collisions between neutral atoms. This results in a linear, as opposed
to a quadratic, projectile nuclear charge dependence for the total ta
rget ionization cross sections.