MULTI-CATHODE METAL VAPOR ARC ION SOURCE

摘要

An ion generating apparatus utilizing a vacuum chamber, a plurality of cathode (250) located on a movable portion of a support member and an anode in the chamber. A source of electrical power produces an arc or discharge between the cathode and anode. The arc is sufficient to vaporize a portion of the cathode to form a plasma. The plasma is directed to an extractor which separates the electrons from the plasma, and accelerates the ions to produce an ion beam.