Patent ID: 7876883

Claim:
An X-ray emission source for producing a compact and uniform emission of X-rays from an electron beam, comprising: a. a conical anode, including a central axis, a female conical reflecting surface having a first end with a relatively large diameter and a second end with a relatively small diameter; b. said conical anode being oriented so that said electron beam is centered on said central axis and strikes said female reflecting surface, thereby emitting X-rays out said second end of said conical anode; c. a hollow cylinder having an internal cylindrical reflecting surface, a first end, and a second end; d. said hollow cylinder being aligned with said central axis; e. said first end of said hollow cylinder being located proximate said second end of said conical anode; f. a first filter located between said conical anode and said hollow cylinder; and g. a second filter located proximate said second end of said hollow cylinder.