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US 4,903,287 AGranted
Radiation source for generating essentially monochromatic x-rays
AssigneeU.S. Philips Corporation
InventorGeoffrey Harding
Life of this patent
Estimating the term…
Abstract
The invention relates to a fluorescence radiation source in which an anode which encloses a member is struck by electrons on its side which faces the member and in which the primary X-ray radiation generated in the anode generates fluorescence radiation in the member. The member is preferably arranged within an enclosing shield which keeps scattered electrons remote from the member.
Claims21
A radiation source for generating essentially monochromatic x-ray radiation comprising
- (a) cathode means for generating accelerated electrons,
- (b) anode means receiving said accelerated electrons for forming a primary beam of x-rays, said anode means having an elongated, inner surface facing said cathode means to receive said accelerated electrons and to form said primary beam of x-ray all along said elongated inner surface,
- (c) a conical member spaced from said inner surface of said anode means for forming fluorescence radiation from said primary beam of x-rays,
- (d) a radiation exit means for passing said fluorescence radiation,
- wherein said conical member has a conical apex directed toward said radiation exit, and
- (e) cylindrical shield means for enclosing said conical member in a sealing manner, said cylindrical shield means being connected to said radiation exit means.
3 more elements
Dependencies are inferred from the claim text.