MULTIPLE CAPTURE AND IONISATION IN HIGH ENERGY ION-ATOM COLLISIONS

Abstract

Multiple electron processes occuring in high energy ion-atom collisions are investigated through Independent Electron Models (IEM), some limits of which are indicated for double capture processes. It is shown that an IEM permits to exhibit non perturbative behaviours of the ionisation process. It appears to be a powerful tool to predict multiply charged recoil ion production and recoil energy distribution when the impact velocity of the primary beam is high enough.