Patent ID: 6529579
Filing Date: 2003-03-04
Classification: H05G

Abstract:
An x-ray tube comprising:(a) a vacuum enclosure with an electron source disposed therein and defining an aperture portion through which electrons emitted by said electron source pass; (b) a target anode disposed in said vacuum enclosure, said target anode having a target surface positioned to receive electrons passing through said aperture portion; (c) a deflection device disposed about said aperture portion of said vacuum enclosure, said deflection device directing said electrons along a desired path to said target anode; (d) at least one fluid passageway formed within a shield structure attached to said vacuum enclosure substantially adjacent to the deflection device and the aperture portion, wherein the at least one passageway is capable of directing a flow of coolant proximate to at least said aperture portion so that at least some heat dissipated from the aperture portion is absorbed by the coolant; and (e) a window block attached to the vacuum enclosure, the window block extending an x-ray transmissive window a predetermined distance away from the target anode, and wherein the window block includes at least one window block flow passage capable of directing the flow of coolant so that at least some heat dissipated from the window block is absorbed by the coolant.