Extraction of space-charge-dominated ion beams from an ECR ion source: Theory and simulation

The problem of extracting high-quality space-charge dominated beams from plasma sources, was studied using theoretical analysis and computational study. The emphasis was placed on comparing predictions derived from elementary theory with those obtained from computational simulation of the extraction problem. An all permanent magnet electron cyclotron resonance source, equipped with a remotely positional extraction electrode system, was used as the basis of a series of simulations. The results show that the developed elementary theory provides important guidelines and physical insight for optimally extracting space-charge-dominated ion beams from plasma boundaries.