High voltage electron beam gun

摘要

An electron beam gun for operation from 100 to 200 kilovolts which includes means for maintaining the alignment and spacing of critical gun elements over the wide range of temperatures experienced during operation of the gun and which allows for ease in changing filaments and ease in dismantling the gun for servicing. Means are provided for the safe handling of the gun when this is requires while the gun is mounted on a machine. The gun is provided with a novel filament and cathode support cartridge assembly of simple design. A quick access door assembly allows quick and easy access to the guns internal parts and insures positive vacuum sealing.