Patent ID: 6272203
Filing Date: 2001-08-07
Classification: G01N

Abstract:
An X-ray fluorescence inspection apparatus which detects a contaminant in an end plug of a fuel rod, comprising:an X-ray generator which irradiates the end plug of the fuel rod with primary X-rays;a fluorescence X-ray detecting device which detects fluorescence X-rays generated from the end plug; anda shielding member which accommodates one end of the fuel rod and has an aperture to expose a portion of the end plug;wherein the shielding member is constructed of a material for which the wavelength of fluorescent X-rays is different from the wavelength of fluorescent X-rays from the contaminant and the end plug, and for which the intensity of fluorescent X-rays at the diffraction angle of the contaminant is less than the intensity of each of the fluorescent X-rays from both the contaminant and the end plug.