Patent ID: 9335282
Filing Date: 2016-05-10
CPC Classification: B82Y,G01N,G21K

Claim Text:
1. An X-ray topography apparatus, comprising: an X-ray source for radiating an X-ray from a fine focal point, the X-ray containing a predetermined characteristic X-ray; an optical system comprising a multilayer mirror with a graded multilayer spacing which corresponds to the predetermined characteristic X-ray, the optical system being configured to cause the X-ray reflected on the multilayer mirror to enter a sample; and an X-ray detector for detecting a diffracted X-ray, which is generated through the sample, wherein the multilayer mirror comprises a curved reflective surface having a parabolic cross section, and the fine focal point of the X-ray source is provided onto a focal point of the curved reflective surface, and the optical system is structured to cause the X-ray to be collimated in a first direction and enter the sample by reflection on the multilayer mirror; and wherein the optical system is structured to cause the X-ray to be diverged in a second direction intersectional to the first direction to enter the sample by reflection on the multilayer mirror.