Girka O. High-current ion beam focusing in a Hall-type ion sources

Was increased efficiency of reverse magnetic system for focusing in the Hall-type ion source: experimentally achieved compression of the current density of the ion beam up to 95. The conditions of separation of impurity ions on the periphery of the focused beam were found: light ions are concentrated in the central part of the beam with the diameter of 3 mm, and impurity ions form a ring with the diameter larger then 6 mm in the plane of the crossover of light ions. The obtained fluxes of light ions in the Hall-type ion source are 1.5*10^22 m-2s-1, the heat flows are 5 MW*m-2, the fluences are 7*10^26 m-2. The charge and current compensation of the focused ion beam were studied. The use of the focused ion beam from the Hall-type ion source for research and technological problems were demonstrated.