| 部分相干X射线衍射相位成像与相位复原的模拟研究 |
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| 引用本文： | 喻虹,朱频频,韩申生. 部分相干X射线衍射相位成像与相位复原的模拟研究[J]. 光学学报, 2003, 23(4): 90-397 |
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| 作者姓名： | 喻虹 朱频频 韩申生 |
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| 作者单位： | 中国科学院上海光学精密机械研究所,上海,201800;中国科学院上海光学精密机械研究所,上海,201800;中国科学院上海光学精密机械研究所,上海,201800 |
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| 基金项目： | 国家自然科学基金 ( 6 99780 2 3)资助课题。 |
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| 摘 要： | 借助于光学传递函数(OTF)概念,分析了微分相位成像过程和直接相位成像过程,讨论了通过图像处理进行相位复原的方法,得到了具有较高成像对比度和分辨率的实验参量区间,并利用数字方法模拟研究了相位成像的过程,对多种相位复原方法进行了比较。
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| 关 键 词： | X射线光学 相位成像 相位复原 X射线 部分相干 |
| 收稿时间： | 2002-05-28 |
A Study of Diffractive Phase Imaging and Phase Restoration with Partially Coherent X-ray |
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| Yu Hong Zhu Pinpin Han Shensheng. A Study of Diffractive Phase Imaging and Phase Restoration with Partially Coherent X-ray[J]. Acta Optica Sinica, 2003, 23(4): 90-397 |
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| Authors: | Yu Hong Zhu Pinpin Han Shensheng |
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| Abstract: | Phase imaging with partially coherent X-ray is analyzed in terms of the optical transfer function (OTF). Differential phase-contrast imaging and direct phase-contrast imaging are discussed, and the proper experiment parameters with good image contrast and resolution are obtained. The phase restoration using image processing method, such as image fusion is discussed. The process of phase imaging and phase restoration is simulated, and different methods of phase restoration are compared. |
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| Keywords: | X-ray optics phase imaging phase restoration X-ray partially coherent |
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