Patent ID: 8068583

Claim:
An X-ray analysis apparatus, comprising: a radiation source for irradiating an irradiation point on a sample with a radiation beam; an X-ray detector for detecting a characteristic X-ray and a scattered X-ray which are radiated from the sample and outputting a signal containing energy information on the characteristic X-ray and the scattered X-ray; an analyzer for analyzing the signal; a moving mechanism capable of moving the irradiation point relatively with respect to the sample within a mapping area set in advance; and an X-ray mapping processing section for discriminating an X-ray intensity corresponding to a specific element arranged on the sample from an analysis result obtained by the analyzer, determining an intensity contrast in which one of a color and lightness is changed in accordance with the X-ray intensity, and performing image display at a position corresponding to the irradiation point of the mapping area, wherein the X-ray mapping processing section sets in advance, as a reference, the X-ray intensity discriminated as to a reference material arranged on the sample on which the specific element is arranged and a component element and one of a concentration and a thickness of the reference material being known, and the X-ray mapping processing section determines the intensity contrast of the X-ray intensity of the specific element discriminated as to the reference at the irradiation point; wherein a height of the reference material is set to be a height of the specific element arranged on the sample such that the X-ray mapping processing section determines the intensity contrast of the X-ray intensity when a distance from the X-ray detector to the reference material is equal to a distance from the X-ray detector to the specific element.