Patent ID: 6130507
Filing Date: 2000-10-10
Classification: H01J

Abstract:
An ion source with propagation of ions in the electron drift plane for emitting ion beams in a radial direction toward an object located in a position reachable by said ion beams, comprising:hollow housing that functions as a cathode of said ion beam source, said hollow housing having a side wall;anode spaced from said cathode at an anode-cathode distance to form an ionization space therebetween for ionization and acceleration of ions formed in said space during operation of said ion beam source;magnetic field generating means in magnetoconductive relationship with said anode;electric power supply means for maintaining saidanode under a positive charge and said cathode under a negative charge;at least one closed-loop ion-emitting slit passing through said side wall of said hollow housing in the direction which coincides with said electron drift plane; anda working medium supply means for the supply of a working medium into said hollow housing.