Patent ID: 9595415
Date: 2017-03-14
CPC Classifications: G01N,H01J

Claim:
1. An X-ray generator comprising: an anode including an electron passage formation member having an annular inner wall surface so as to define an electron passage hole; an integrated target including a target layer and an insulating substrate supporting the target layer; and an electron source facing the target layer so as to irradiate the target layer with electrons passing through the electron passage hole, wherein the target layer is provided at a central region of the insulating substrate such that the integrated target includes a peripheral region and a periphery of the substrate is uncovered by the target layer, wherein the electron passage formation member accommodates a secondary X-ray generating region at the annular inner wall surface that generates secondary X-rays by irradiation with electrons reflected from the target layer, and wherein an angle θ formed by the secondary X-ray generating region and the target layer shows a relation 10°<θ<85° such that the electron passage formation member generates secondary X-rays in response to irradiation electron reflected from the target layer and at least a part of the secondary X-rays is transmitted outside of the X-ray generator through the peripheral region.