Importance

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Abstract

A hand held x-ray source includes an x-ray tube and integral generator for exciting the tube at precisely controllable high voltage and direct current levels. The integral generator includes an elongated housing grippable by the hand and an elongated unitary molded block mounted in the housing and thermally sumped thereto. The block defines a first heat conduction fluid fillable cavity for receiving the tube and for providing a high voltage connection to the anode adjacent to the interior end thereof, the block being formed to contain and insulate interconnected elements providing a single voltage multipliers tack, and primary and secondary windings of a single high voltage switching transformer having a ferrite magnetic core external to the block. A heat conduction fluid is disposed between the tube and the block for conducting heat generated during tube operation to the block. An electronic circuit substrate in the housing carries circuit elements connected to the transformer and to the grounded filament for generating a precisely controllable exciting direct current high voltage applicable to the target of the tube and for generating a precisely controllable filament current through the filament of the tube.

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First Claim