Patent ID: 7991109

Claim:
An X-ray spectrometer for carrying out both an element analysis and a structural analysis of a polycrystalline sample disposed at a sample position, the spectrometer comprising: a polychromatic source for providing an X-ray beam that is incident on the sample; a holder for holding the sample; one or more fluorescence channels which can select X-ray beams of a particular wavelength and energy and which have detectors for measuring selected X-ray beams; at least one diffractometry channel which is configured to select, by means of a monochromator, an X-ray beam wavelength of said source subsequent to diffraction of said X-ray beam by the sample and having a detector for measuring said selected X-ray beams; and a moveable single slit device disposed between the source and the sample for transverse motion relative to a direction of said X-ray beam from said source, wherein said monochromator of said diffractometry channel is stationarily disposed with respect to said source and the sample and has an entry single slit which defines, together with said movable single slit device and the sample position, a characteristic diffraction angle 2θ of a predetermined crystal structure of the polycrystalline sample at a wavelength of said source selected by said monochromator.