Patent ID: 7197119
Filing Date: 2007-03-27
Classification: H01J

Abstract:
1. In a rotary piston x-ray tube directly cooled by coolant surrounding the x-ray tube, the improvement of an anode plate comprising: an anode plate body having a topside, adapted to interact with an electron beam along a focal spot path to generate x-rays, and having an underside facing away from said topside; said anode plate body being composed of material selected from the group consisting of tungsten, molybdenum, and tungsten/molybdenum combinations; said anode plate body having a non-uniform thickness between said topside and, said underside, with the thickness beneath said focal spot oath being less the thickness of a remainder of the anode plate body; and said underside of said anode plate body having a region beneath said focal spot path proceeding substantially parallel to a surface of said topside at which said focal spot oath is located and being in direct contact with said coolant.