X-ray target having big Z particles imbedded in a matrix
AssigneeVarian Associates, Inc.
InventorsGary Fredric Virshup, Glyn Jeremy Reynolds
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Abstract
A rotating anode X-ray target has a matrix structure such as a carbon-carbon matrix and a high Z material imbedded inside this matrix structure. The high Z material may be a refractory metal with atomic number at least 72, its alloy or carbide and may be imbedded in the matrix either as discrete particles or as a non-discrete layer. Such a target can be made by any of a number of known methods such as chemical vapor deposition and chemical vapor infiltration. Without a TZM layer or a braze required for holding together an x-ray-producing surface layer and a carbon heat storage material, the target can be made lighter and can be operated at higher temperatures.
Claims29
An X-ray target comprising:
- a matrix structure;
- and
- a high Z material, said high Z material being imbedded inside said matrix structure.
A method of making an X-ray target, said method comprising the steps of:
- providing a matrix structure with a top surface;
- and
- causing a high Z material capable of producing X-rays by electron bombardment on said top surface to be imbedded in said matrix structure.
An X-ray target comprising:
- a matrix structure;
- and
- a material selected from the group consisting of elements capable of producing X-rays by electron bombardment thereon, alloys thereof and carbides thereof, said material being imbedded inside said matrix structure.
Dependencies are inferred from the claim text.