Portable X-ray analysis device

Abstract

The invention provides a portable X-ray analysis device which comprises an X-ray generator, an X-ray fluorescence analysis unit, an X-ray diffraction analysis unit and a spectral analysis module, wherein the X-ray fluorescence analysis unit comprises a fluorescence sample stage used for placing a fluorescence sample; the fluorescence sample stage comprises a first base arranged horizontally and provided with a notch, and an inclined sample loading stage arranged in the notch in a slideable manner and provided with an inclined surface; a placement groove is formed in the inclined surface in a concave manner; a first object bearing sheet for bearing the fluorescence sample is placed in the placement groove; a first through hole is located in the placement groove and penetrates through the inclined sample loading stage; the X-ray diffraction analysis unit comprises an X-ray collimation adjustment module located under the first through hole, a diffraction sample stage connected with the lower end of the X-ray collimation adjustment module, and a CCD detection module located below the diffraction sample stage and connected with the spectral analysis module. The device has the benefits that the device effectively shortens analysis time, is small in size, light in mass, and low in cost and conveniently operates in a field environment.

Description

Technical field [0001] The invention relates to the technical field of X-ray analysis, in particular to a portable X-ray analysis device. Background technique [0002] X-Ray Fluorescence (XRF) and X-Ray Diffraction (XRD) are two methods that use different characteristics of X-rays to analyze material composition. When a beam of X-ray irradiates the surface of a material, the phenomenon of X-ray scattering and absorption occurs. Under certain conditions, the coherent scattering of X-rays forms diffraction fringes. Different diffraction fringes represent different material structures. Therefore, XRD detectors are mainly used to analyze the phase and crystal parameters of materials and are widely used in materials, metallurgy, cement, minerals, etc. field. The energy carried by X-rays is absorbed by the internal electrons of the substance, which produces electronic transitions and releases fluorescent X-rays. The energy and quantity of fluorescent X-rays are related to the elemen...

AI Technical Summary

Problems solved by technology

[0005] (2) Single structure mode, due to the miniaturization and portability of XRF has been very mature, while the portable research of XRD is still limited to some analytical instrument manufacturers

Some large-scale XRD analysis instrument manufacturers have launched desktop and miniaturized XRD, but there are still relatively few applications directly in the field

The main obstacle restricting the development of portable XRD is the inherent constraints of instrument weight, volume and instrument performance indicators

For example, although the goniometer makes the analysis accuracy of XRD high and the measurement angle range is large, but because it belongs to the precision mechanical rotating device, it is not convenient to work in the field environment.

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