Patent ID: 8300767

Claim:
A wavelength-classifying type X-ray diffraction device for bombarding a sample with characteristic X-rays generated by X-ray generating means, and detecting using X-ray detecting means the characteristic X-rays that have been diffracted by said sample, wherein: said X-ray generating means is made of a plurality of metals having different atomic numbers, and generates from said respective metals a plurality of characteristic X-rays of mutually different wavelengths; said X-ray detecting means is a pulse counting type pixel array detector, which is made of a plurality of pixels that receive characteristic X-rays of a plurality of wavelengths diffracted by said sample and that output signals corresponding to the wavelengths of said respective characteristic X-rays; and said pixels are respectively furnished with classifying means, said pixels outputting signals in different states for every wavelength of X-rays, said classifying means being adapted to classify output signals of said pixels into each of the wavelengths of the characteristic X-rays, and output the signals.