Shearing x-ray interferometer with an x-ray prism
Shearing x-ray interferometer with an x-ray prism
复制标题
带 X 射线棱镜的剪切 X 射线干涉仪
DOI：
10.1063/1.1536718
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发表时间：
2003
影响因子：
3.2
通讯作者：
Yoshio Suzuki
中科院分区：
文献类型：
--
作者：
Y. Kohmura;T. Ishikawa;H. Takano;Yoshio Suzuki
设计了一种波前分割干涉仪，其中由 X 射线棱镜偏转的高度空间相干光束的一半与另一半重叠。通过将样品放置在两个光束中并且将X射线成像探测器放置在样品的下游附近，样品的微分相位被记录在成像探测器上。在本实验中，样品平面上两条路径的间隔（剪切量）为 2.2 μm。这可以通过改变样品和成像检测器之间的距离来轻松控制。使用条纹扫描方法的相位恢复已成功应用于各种弱吸收样品。
A wave front dividing interferometer was devised in which half of a highly spatially coherent beam deflected by an x-ray prism is overlapped with another half. By placing the samples in the two beams and the x-ray imaging detector closely downstream of the sample, the differential phase of the sample is recorded on the imaging detector. The separation of the two paths at the sample plane, the amount of shear, was 2.2 μm in the present experiment. This is easily controllable by changing the distance between the sample and the imaging detector. Phase retrieval using the fringe scanning method was successfully demonstrated for various kinds of weakly absorbing samples.