Acta Optica Sinica, Volume. 36, Issue 3, 334001(2016)
Low Cost and High Efficiency Method for X-ray Phase Contrast Imaging
Grating-based X-ray differential phase contrast imaging has great advantages of detecting the low- Z materials compared with conventional X- ray absorption imaging. It has potential applications in the field of materials, security and medical diagnostics. The fabrication process of absorption grating which is a critical optical component in the system is difficult and costly, and the absorption grating cannot completely absorb high- energy X- rays that results in the decrease of image contrast and detection sensitivity, which has been a great obstacle for the practical application. In view of above problems, a low cost and high efficiency approach based on Bi-source grating and structured scintillator is proposed. The scintillator overcomes the limitation of high- energy X- rays and proposes the function of analyzer grating. This approach obtains high quality phase contrast image experimentally.
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Du Yang, Liu Xin, Lei Yaohu, Huang Jianheng, Zhao Zhigang, Lin Danying, Guo Jinchuan, Li Ji, Niu Hanben. Low Cost and High Efficiency Method for X-ray Phase Contrast Imaging[J]. Acta Optica Sinica, 2016, 36(3): 334001
Category: X-Ray Optics
Received: Sep. 9, 2015
Accepted: --
Published Online: Mar. 3, 2016
The Author Email: Yang Du (wolfduyang@163.com)