Synchrotron radiation is the electromagnetic radiation produced in the direction of the tangent of the orbit when the electron is moving in the curve at high speed, people called this electromagnetic radiation generated by the charged particles moving in the magnetic field near the speed of light. Synchrotron radiation can be used to carry out many cutting-edge scientific and technological research.

A device capable of producing synchrotron radiation is called a synchrotron radiation source. The structure of modern synchrotron radiation light source is shown in the figure, which is mainly composed of three parts: synchrotron radiation generating device, light beam and experimental station. 

When synchrotron radiation passes through the sample, a variety of scattering and absorption processes occur, and these processes can be observed by a variety of special detectors, so many synchrotron radiation experimental methods were born. At present, the typical X-ray characterization methods based on synchrotron radiation include: high resolution X-ray diffraction, small Angle X-ray scattering and X-ray absorption spectroscopy .

   X-ray absorption spectroscopy                                                                                         powder x-ray diffraction