Acta Optica Sinica, Volume. 31, Issue 10, 1034001(2011)
Analysis and Simulation of Mid-Energy X-Ray Grating Phase Contrast Microscopy Imaging
A theoretical analysis of X-ray microscopy based on the fractional Talbot effect of phase grating and two different imaging formulas when the grating is placed in different locations is given. A cell model of water and protein is established. According to the imaging formulas and the cell model, a set of system parameters are designed and a conclusion which can be made is that mid-energy X-ray between 1 and 2 keV will be the optimal choice considering long focal depth and high image contrast. Then the imaging results with 1.5 keV X-ray is simulated and the phase distribution of the model is recoveried by the phase stepping method. Simulation results show that the phase contrast image with mid-energy X-ray is much better than the absorption contrast one in contrast and resolution under the same signal-to-noise ratio.
Get Citation
Copy Citation Text
Huang Jianheng, Lin Danying, Liu Zhenwei, Yang Qiang, Guo Jinchuan, Niu Hanben. Analysis and Simulation of Mid-Energy X-Ray Grating Phase Contrast Microscopy Imaging[J]. Acta Optica Sinica, 2011, 31(10): 1034001
Category: X-Ray Optics
Received: Mar. 18, 2011
Accepted: --
Published Online: Sep. 16, 2011
The Author Email: Jianheng Huang (huangjianheng2011@yahoo.com.cn)