Patent ID: 6456691
Filing Date: 2002-09-24
Classification: B82Y,H01J,Y10S

Abstract:
An X-ray generator comprising:(a) a Wehnelt; (b) a cathode disposed within said Wehnelt and having emitter means made of carbon nanotubes; (c) a target disposed so as to face said cathode; (d) a takeoff electrode disposed near said cathode; (e) a first power supply connected between said cathode and said target so as to control a target potential based on a cathode potential; (f) a second power supply connected between said cathode and said Wehnelt so as to control a Wehnelt potential based on the cathode potential; and (g) a third power supply connected between said cathode and said takeoff electrode so as to control a takeoff electrode potential based on the cathode potential.