Surface emission theoretical description

As an illustration of the strong perturbation introduced by an ion in a metal and of the theoretical description of it in nonlinear theory of screening, we show some results obtained for the interaction of Ne ions with metals. Multicharged Ne ions have been widely used in the experimental study of ion neutralization and electron emission processes at metal surfaces [14-16], We plot in Fig. 1 the electronic density induced by a Ne ion in a FEG of... 

---