Patent ID: 7489763
Filing Date: 2009-02-10
Classification: H01J

Abstract:
1. A rotary anode radiator comprising: a cathode that emits an electron beam; an anode at which said electron beam is incident at a focus, said anode being mounted for rotation around an axis so that said focus exhibits a focus path on a first surface of said anode facing said cathode; said anode having an anode body comprised of a first material and having a second side, facing away from said cathode, opposite said first side; a structure disposed in an annular recess of said anode body at said second side of said anode and being co-rotatable with said anode, with a portion of said anode body between said structure and said first surface, at least a portion of said structure being beneath said focus path, and at least two heat conductor elements held in said structure in said annular recess at said second side of said anode body, said at least two heat conductor elements being comprised of a second material having a higher heat conductivity than said first material; and said at least two heat conductor elements being held in said structure in said annular recess with an expansion gap between said at least two heat conductor elements in said structure in said annular recess.