Investigation of the partially coherent effects in a 2d talbot interferometer
文献类型：期刊论文
| 作者 | Ge, Xin1; Wang, Zhili1,2; Gao, Kun1; Zhang, Kai2; Hong, Youli2; Wang, Dajiang1; Zhu, Zhongzhu2; Zhu, Peiping2; Wu, Ziyu1,2 |
| 刊名 | Analytical and bioanalytical chemistry
 |
| 出版日期 | 2011-08-01 |
| 卷号 | 401期号:3页码:865-870 |
| 关键词 | X-ray phase contrast 2d talbot interferometer Partially coherent illumination Visibility |
| ISSN号 | 1618-2642 |
| DOI | 10.1007/s00216-011-5146-5 |
| 通讯作者 | Wu, ziyu(wuzy@ustc.edu.cn) |
| 英文摘要 | The recent use of a one-dimensional (1d) x-ray talbot interferometer has triggered great interest in x-ray differential phase contrast imaging. as an improved version of a 1d interferometer, the development of two-dimensional (2d) grating interferometry strongly stimulated applications of grating-based imaging. in the framework of fresnel diffraction theory, we investigated the self-image of 2d-phase gratings under partially coherent illumination. the fringe visibility of the self-image has been analyzed as a function of the spatial coherence length. from the viewpoint of self-image visibility, it is possible to find the optimal 2d grid for 2d x-ray grating interferometer imaging. numerical simulations have been also carried out for quantitative evaluation. results, in good agreement with theoretical analysis, indicate the spatial coherence requirements of the radiation illuminating a 2d grating interferometer. moreover, our results can be used to optimize performances of a 2d grating interferometer and for further theoretical and experimental research on grating-based imaging systems. |
| WOS关键词 | SHEARING INTERFEROMETER ; PHASE TOMOGRAPHY ; RAY |
| WOS研究方向 | Biochemistry & Molecular Biology ; Chemistry |
| WOS类目 | Biochemical Research Methods ; Chemistry, Analytical |
| 语种 | 英语 |
| WOS记录号 | WOS:000292970200011 |
| 出版者 | SPRINGER HEIDELBERG |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2176102 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Wu, Ziyu |
| 作者单位 | 1.Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230026, Peoples R China 2.Chinese Acad Sci, Beijing Synchrotron Radiat Facil, Inst High Energy Phys, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ge, Xin,Wang, Zhili,Gao, Kun,et al. Investigation of the partially coherent effects in a 2d talbot interferometer[J]. Analytical and bioanalytical chemistry,2011,401(3):865-870. |
| APA | Ge, Xin.,Wang, Zhili.,Gao, Kun.,Zhang, Kai.,Hong, Youli.,...&Wu, Ziyu.(2011).Investigation of the partially coherent effects in a 2d talbot interferometer.Analytical and bioanalytical chemistry,401(3),865-870. |
| MLA | Ge, Xin,et al."Investigation of the partially coherent effects in a 2d talbot interferometer".Analytical and bioanalytical chemistry 401.3(2011):865-870. |
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来源：高能物理研究所
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