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	Phase-contrast Imaging simulation based on a micro-CT system
	Jianbao Gui; Jing Zou; Junyan Rong; Zhanli Hu; Qiyang Zhang; Hairong Zheng; Dan Xia
	2013
会议名称	World Congress on Medical Physics and Biomedical Engineering
会议地点	Beijing, China
英文摘要	Propagation-based phase-contrast imaging was simulated based on paraxial Fresnel-Kirchoff diffraction integral and spherical wave illumination. Under a developed micro-CT system parameters, the effects of focal-spot size and imaging geometry on phase-contrast imaging have been investigated using a 2 mm thickness polystyrene edge phantom. An equivalent mono-energy was used to substitute the polychromatic spectrum of the micro-focus x-ray source. To consider effects of focal-spot size and detector resolution, the obtained phase-contrast image with an ideal point source was convolved with source intensity distribution and point spread function of detector. Simulations show reasonable influences of the two parameters and are in good agreement with experimental results.
收录类别	EI
语种	英语
内容类型	会议论文
源URL	[http://ir.siat.ac.cn:8080/handle/172644/4940]
专题	深圳先进技术研究院_医工所
作者单位	2013
推荐引用方式 GB/T 7714	Jianbao Gui,Jing Zou,Junyan Rong,et al. Phase-contrast Imaging simulation based on a micro-CT system[C]. 见:World Congress on Medical Physics and Biomedical Engineering. Beijing, China.

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