Development of Key Devices of Grating-Based X-ray Phase-Contrast Imaging Technology at Shenzhen University

In this paper, the advance in the key devices of grating-based x-ray phase-contrast imaging technique, including a new x-ray tube, an x-ray phase grating, and an x-ray image detector assembly of dual function, has been introduced at Shenzhen University. A Talbot-effect-based imaging system consisted of these devices has been built up, in which there is only a phase grating without any absorption grating. Some small samples have been imaged on the system and their differential phase contrast images have been obtained. The simplification of the system can be favorable to the application progress of the grating-based x-ray imaging technology in the future.