Patent ID: 6055294
Filing Date: 2000-04-25
Classification: H01J

Abstract:
An X-ray tube comprising:a vacuum housing;an anode and a cathode contained in said vacuum housing, said cathode emitting an electron beam which propagates along an electron beam path to said anode;a deflection arrangement disposed to interact with and deflect said electron beam in said electron beam path, said deflection arrangement comprising two electromagnets;each of said two electromagnets comprising a U-shaped yoke having two arms connected by a base segment, and a winding on said base segment which, when supplied with current, gives the electromagnet on which the winding is wound a magnetic polarization;said two arms of each yoke having respective end faces of opposite magnetic polarities so that each of said two electromagnets has an end face pair, the respective end face pairs of the two electromagnets being disposedfacing and spaced from each other forming a gap, said yokes of said two electromagnets bounding an opening through which said electron beam proceeds along said electron beam path; andsaid end face pairs being disposed so that the end faces thereof with the same polarity are disposed opposite each other.