Phase retrieval using polychromatic illumination for transmission X-ray microscopy.
Phase retrieval using polychromatic illumination for transmission X-ray microscopy.
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DOI：
10.1364/oe.19.000540
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发表时间：
2011-01-17
期刊：
影响因子：
3.8
通讯作者：
Pianetta P
中科院分区：
文献类型：
--
作者：
Liu Y;Andrews JC;Wang J;Meirer F;Zhu P;Wu Z;Pianetta P
提出了一种在透射X射线显微镜系统中进行亚50 nm分辨率定量相位恢复的方法。作为在光束方向上移动样品以分析传播引入的相位效应的替代方案，我们使用不同能量的X射线照射TXM，而在TXM系统中没有任何电机运动。理论分析和实验研究都证实了该方法的可行性和优越性，因为在同步辐射光束线上使用双晶体单色器可以实现非常高的能量分辨率，并且在TXM系统中电机误差为零。高空间分辨率相位恢复使用所提出的方法完成。
An alternative method for quantitative phase retrieval in a transmission X-ray microscope system at sub-50-nm resolution is presented. As an alternative to moving the sample in the beam direction in order to analyze the propagation-introduced phase effect, we have illuminated the TXM using X-rays of different energy without any motor movement in the TXM system. Both theoretical analysis and experimental studies have confirmed the feasibility and the advantage of our method, because energy tuning can be performed with very high energy resolution using a double crystal monochromator at a synchrotron beam line, and there is zero motor error in TXM system in our approach. High-spatial-resolution phase retrieval is accomplished using the proposed method.