Koninklijke Philips Corporation N.v.

Richardson Electronics, Ltd.

Min He

Gerald James Carlson

Kevin Charles Kraft

Ming-Wei Paul Xu

Norman Wandke

Thomas Muchowicz

Embodiments of the invention provide a conductive coating on an insulator of an x-ray tube and a method for applying the conductive coating. The method may use a first process, such as brazing, to join a support to the insulator and a second process, such as vapor deposition, to apply the conductive coating onto a substrate surface of the insulator. The second process may be carried out after the first process without any damage to x-ray tube insulator assembly.

Insulator with conductive dissipative coating

An anode () is formed by building a carbon, such as a carbon reinforced carbon composite, or other ceramic substrate (). A ductile, refractory metal is electroplated on the ceramic substrate to form a refractory metal carbide layer () and a ductile refractory metal layer (), at least on a focal track portion (). A high-Z refractory metal is vacuum plasma sprayed on the ductile refractory metal layer to form a vacuum plasma sprayed high-Z refractory metal layer (), at least on the focal track portion.

Anode disk element with refractory interlayer and VPS focal track

A method () creates a braze joint () between an anode plate () and a piece of graphite () of an x-ray tube (). The method () includes receiving () the anode plate () and the piece of graphite (). A barrier layer () and a braze layer () are arranged () between the anode plate () and the piece of graphite (), where the barrier layer () is between the piece of graphite () and the brazing layer (). The barrier layer () is heated () with the braze layer () to create the braze joint () between the anode plate () and the piece of graphite ().

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Downers Grove, IL, United States of America

Min He