COMPUTER-SIMULATION OF ELECTRON-BEAMS

Self-fields and forces as well as the local degree of space-charge neu tralization in overcompensated electron beams are considered. The radi al variation of the local degree of space-charge neutralization is ana lysed. A novel model which describes the equilibrium potential distrib ution in overcompensated beams is proposed and a method for computer s imulation of the beam propagation is described. Results from numerical experiments which illustrate the propagation of finite emittance over neutralized beams are presented.