X-ray or gamma ray systems or devices – Source – Target
Patent
1996-09-13
1998-10-20
Church, Craig E.
X-ray or gamma ray systems or devices
Source
Target
378143, H01J 3508
Patent
active
058258485
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.
REFERENCES:
patent: 5148462 (1992-09-01), Spitsyn et al.
Reynolds Glyn Jeremy
Virshup Gary Fredric
Church Craig E.
Fishman Bella
Varian Associates Inc.
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