ION SOURCE Russian patent published in 1994 - IPC

FIELD: radiation physics. SUBSTANCE: ion source uses cylindrical coaxially extending anode, firing electrode, cathode holder, cathode made of concentric rings of working material snugging against one another, insulator electrically separating the cathode and fitting electrode, power supply of the main discharge with controllable pulse duration that is connected between the cathode external ring and anode. The firing electrode with insulator is installed in the center of the cathode. In the process of discharge arcing the cathode spot formed on the ring nearest to the firing electrode shifts towards the external ring, which results in a successive forming of plasma from different materials. EFFECT: simplified design. 1 dwg