Wire ion plasma gun

摘要: An ion plasma electron gun for the generation of beams which exhibits beam dose uniformity and is capable varying received by a material to be irradiated. Positive ions generated wire in discharge chamber are accelerated through an extraction grid onto second containing high voltage cold cathode. These positive bombard surface cathode, causing cathode emit secondary electrons form beam. After passing chamber, exits from way foil window supported on grid. The constructed so that has relatively large area uniform distribution subsantially same as impinging upon Means provided creating pulse period time transmitted foil.