Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Steven D. Liddiard0
Charles R. Jensen0
Erik C. Bard0
Date of Patent
May 5, 2009
0Patent Application Number
118799700
Date Filed
July 18, 2007
0Patent Primary Examiner
Patent abstract
A cathode header optic for an x-ray tube includes an elongate trench with opposite trench walls. A cup recess is formed in the trench between the opposite trench walls, and has a bounded perimeter. A cathode element is disposed in the trench at the cup recess. The cathode element is capable of heating and releasing electrons. A secondary cathode optic defining a cathode ring can be disposed about the header optic. The cathode optics can form part of an x-ray tube.
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