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Figure 2
Diffraction from a pair of slits measured through 4 mm of unpolished Be (continuous line) and 250 µm of kapton (dashed line). The curves are vertically shifted for clarity. Note that the asymmetry of the Fraunhofer pattern is due to the longitudinal offset of the slit blades (see Le Bolloc'h et al., 2002BB10). The kapton window preserves the wavefront of the coherent X-ray beam, while spurious speckles are produced by the Be window. Inset: design of the flange with kapton windows.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 15| Part 4| May 2008| Pages 414-419
doi:10.1107/S0909049508003944
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