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US 7,356,122 B2Granted
X-ray anode focal track region
AssigneeGeneral Electric Company
InventorsThomas Raber, Bernard Bewlay, Andrew Trimmer, Bin Wei, Colin R. Wilson, Mark Benz, Ernest Balch
Life of this patent
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Abstract
A focal track region of an x-ray anode in an example is electrochemically etched. In a further example, an x-ray anode comprises a thermally-compliant focal track region for impingement of electrons from an x-ray cathode to create an x-ray source. The thermally-compliant focal track region comprises a pattern of discrete relative expanses and gaps.
Claims4
An x-ray anode, comprising:
- a thermally-compliant focal track region for impingement of electrons from an x-ray cathode to create an x-ray source, wherein the thermally-compliant focal track region comprises a raised surface pattern of discrete relative expanses and gaps and wherein the discrete relative expanses comprise a major dimension of 50 microns to 500 microns, wherein the gaps comprise a depth of 10 microns to 20 microns, wherein the gaps comprise a width of 3 microns to 20 microns.
A CT system, comprising:
- an x-ray source that emits a beam of x-rays toward an object to be imaged;
- a detector that receives x-rays emitted by the x-ray source;
- a data acquisition system (DAS) operably connected to the detector;
- wherein the x-ray source comprises a thermally-compliant x-ray anode focal track region for impingement of electrons from an x-ray cathode to create the beam of x-rays toward the object to be imaged, wherein the thermally-compliant x-ray anode focal track region comprises a pattern of discrete relative expanses and gaps, wherein the discrete relative expanses comprise a major dimension of 50 microns to 500 microns, wherein the gaps comprise a depth of 10 microns to 20 microns, wherein the gaps comprise a width of 3 microns to 20 microns.
1 more element
Dependencies are inferred from the claim text.