초록 ▼

The ion source of the invention emits ion beams radially inwardly or radially outwardly from the entire periphery of the closed-loop ion-emitting slit. In one embodiment, a tubular or oval-shaped hollow body, which also functions as a cathode, contains a similarly-shaped concentric anode spaced from

The ion source of the invention emits ion beams radially inwardly or radially outwardly from the entire periphery of the closed-loop ion-emitting slit. In one embodiment, a tubular or oval-shaped hollow body, which also functions as a cathode, contains a similarly-shaped concentric anode spaced from the inner walls of the cathode at a distance required to form an ion-generating and accelerating space. The cathode has a continuous ion-emitting slit which is aligned with the position of the anode and is concentric thereto. A magnetic-field generation means is located inside the ring-shaped anode. When the ion source is energized by inducing an magnetic field, connecting the anode to a positive pole of the electric power supply unit, the cathode to a negative pole of the power supply unit, and supplying a working medium into the hollow housing, the electrons begin to drift in the annular space between the anode and cathode in the same direction in which the ions are emitted from the annular slit. By rearranging positions of magnet, anode, and cathode, it is possible to provide emission of ions in the inward or outward direction for treating outer or inner surfaces of tubular objects.

대표청구항 ▼

[ What is claimed is:] [1.] 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 h

[ What is claimed is:] [1.] 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.