Patent ID: 7197114

Claim:
An X-ray emitter comprising: an anode; a cathode; a vacuum evacuated body in which the anode and the cathode are placed; a non-rotating member fastened to the body and forming a stationary axis of rotation; a rotating member supported by and disposed about the non-rotating member, the rotating member rotatable about the non-rotating member via bearings, the anode being supported by the rotating member and rotatable about the axis of rotation; an opening in the body; and a high-voltage connector placed in the opening, the connector closing off the opening in a vacuum-tight manner, the high-voltage connector connected to the cathode and configured to connect to a high-voltage generator; wherein the connector is subjected to a vacuum on the side of the cathode and to ambient air on the opposite side; wherein the outside of the vacuum evacuated body is subjected to atmospheric pressure and ambient air; wherein the anode is configured to connect to ground potential and is rotationally operable at high speed while the anode is connected to ground potential; and wherein the anode comprises a rotatable disc, and the cathode is disposed in a plane defined by the rotatable disc.