Patent ID: 6128367
Filing Date: 2000-10-03
Classification: H01J

Abstract:
An x-ray tube comprising:a vacuum housing;a cathode and an anode contained in said vacuum housing, said cathode emitting an electron beam which proceeds along a main direction of propagation of the electron beam to strike said anode to generate x-rays;an electromagnet disposed for interacting with said electron beam in said main direction of propagation of the electron beam;said electromagnet comprising a yoke having two legs and a base section connecting said legs, with an electrical winding on said base section, each of said legs having a pole shoe with a pole face, the respective pole faces of the respective pole shoes of the respective legs being disposed facing each other with said main direction of propagation of the electron beam proceeding between said pole faces, said pole shoes having a common center axis proceeding perpendicularly to said main direction of propagation the electron beam; andeach of said pole shoes having in a plane disposed at a right angle to said main direction of propagation of the electron beam a pole shoe width which is not less than a pole face width of the pole face thereof measured in a direction disposed at a right angle to said center axis.