Varian Medical Systems, Inc.

Varian Associates, Inc.

Jeff Takenaka

Christopher F Artig

Scott Coles

Mark Lange

Karen Quinn

Thomas J Koller

Craig Smith

Rick Smith

Rajesh Bandari

Jim Burke

Brian Carsten

The present invention is directed to a radiographic apparatus that utilizes a single integral housing for providing an evacuated envelope for an anode and cathode assembly. The integral housing provides sufficient radiation blocking and heat transfer characteristics such that an additional external housing is not required. The integral housing is air cooled, and thus does not utilize any coolant. In addition, the integral housing is insulated with a potting material, which electrically insulates the integral housing and its components, and also limits the amount of noise emitted from the housing during operation. In an alternative embodiment, enhanced thermal and electrically insulating properties are achieved through the use of a potting material disposed in selected areas of the tube interior. The potting material cooperates with optimized airflow through the tube assembly to effectively and continuously remove heat therefrom.

X-ray tube having an integral housing assembly

The present invention is directed to a radiographic apparatus that utilizes a single integral housing for providing an evacuated envelope for an anode and cathode assembly. The integral housing provides sufficient radiation blocking and heat transfer characteristics such that an additional external housing is not required. The integral housing is air cooled, and thus does not utilize any coolant. In addition, the integral housing is insulated with a dielectric gel material, which electrically insulates the integral housing and its components, and also limits the amount of noise emitted from the housing during operation.

Mammography x-ray tube having an integral housing assembly

A method and apparatus for superimposing a plurality of electron beams at a desired location after X-ray tube manufacturing processes are generally complete. The method is embodied in providing mechanical and electrical means which are internal to the X-ray tube which provide means for adjustment of a focal point of a plurality of electron beams being emitted from a cathode assembly to thereby provide precise control of where the plurality of electron beams achieve superimposition on a target anode.

Electron beam superimposition method and apparatus

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Salt Lake City, UT, United States of America

Jeff Takenaka