| Instability of Solution of Phase Retrieval in Direct Diffraction Phase-Contrast Imaging with Partially Coherent X-Ray Source |
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| 作者姓名： | 郭华 韩申生 |
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| 作者单位： | [1]Key Laboratory for Quantum Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800 [2]College of Mathematics, Jilin University, Changchun 130012 |
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| 基金项目： | Supported by the Natural Science Foundation of Shanghai under Grant No 04ZR14146 and the National Natural Science Foundation of China under Grant No 60477007. |
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| 摘 要： |
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| 关 键 词： | 直接衍射相位对比度成像模型 偏相干X-射线源 相位提取方案 不稳定性 算子方程 |
| 收稿时间： | 2006-05-11 |
| 修稿时间： | 2006-05-11 |
Instability of Solution of Phase Retrieval in Direct Diffraction Phase-Contrast Imaging with Partially Coherent X-Ray Source |
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| GUO Hua,HAN Shen-Sheng.Instability of Solution of Phase Retrieval in Direct Diffraction Phase-Contrast Imaging with Partially Coherent X-Ray Source[J].Chinese Physics Letters,2006,23(12):3259-3262. |
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| Authors: | GUO Hua HAN Shen-Sheng |
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| Institution: | 1.Key Laboratory for Quantum Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800 ;2 .College of Mathematics, Jilin University, Changchun 130012 |
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| Abstract: | The theoretical model of direct diffraction phase-contrast imaging with partially coherent x-ray source is expressed by an operator of multiple integral. It is presented that the integral operator is linear. The problem of its phase retrieval is described by solving an operator equation of multiple integral. It is demonstrated that the solution of the phase retrieval is unstable. The numerical simulation is performed and the result validates that the solution of the phase retrieval is unstable. |
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| Keywords: | 42 30 Rx 42 30 Wb 41 50 +h 02 30 Rz |
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