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![[Figure 1]](pp5156fig1mag.jpg)
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Figure 1
(a) Conceptual sketch (not to scale) of the setup. A 1D Ronchi grating is placed somewhat behind the focus of the X-rays [e.g. 5 mm in the data presented in (c)]. The period of the Ronchi grating is chosen such that orders 1 and −1 do not overlap, while maintaining a large overlap between order 0 and the first orders. Only the +1 order is drawn for clarity. A monochromator [e.g. Si(111) for data shown in (c)] may be necessary due to the chromaticity of the CRL. (b) Closeup of the rays close to the focus and the Ronchi grating, showing the focus of the beam and the virtual focus of the +1 order, that act as secondary sources. (c) Image of the interference pattern on the camera, showing the distorted linear fringes. |
![[Figure 1]](pp5156fig1.jpg)
 | JOURNAL OF SYNCHROTRON RADIATION |
ISSN: 1600-5775
