Patent ID: 7428293
Filing Date: 2008-09-23
Classification: G01N

Abstract:
1. A fluorescent X-ray analysis apparatus which possesses an X-ray source irradiating a primary X-ray, and a detector in which a collimator having a through-hole in its center part has been placed in a front face, and in which, when the primary X-ray has been irradiated to a sample from the X-ray source, a primary fluorescent X-ray generating from the sample and passing through the through-hole of the collimator is detected by the detector, wherein the X-ray source and the detector are disposed while adjoining the sample, and an irradiated face of at least one of the X-ray source and the detector, to which a primary scattered ray having generated by the fact that the primary X-ray scatters in the sample and the primary fluorescent X-ray having generated from the sample are irradiated, is covered by a secondary X-ray reduction layer reducing a secondary scattered ray and a secondary fluorescent X-ray, which generate by irradiations of the primary scattered ray and the primary fluorescent X-ray, and wherein the secondary X-ray reduction layer is formed by an element whose energy of a fluorescent X-ray generating in maximum from the secondary X-ray reduction layer is lower than an energy of a fluorescent X-ray generating in maximum from a face having been covered by the secondary X-ray reduction layer.