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Figure 3
X-ray topographs of W-grooved diffractors taken with a CCD camera of resolution 50 µm and integration time τ. (a) α = 0o, τ = 0.01 s; (b) α = 4°, τ = 0.04 s; (c) α = 8.5°, τ = 2 s, opened slits; (d) α = 8.5°, τ = 2 s, slits set to limit the incident beam to the central inclined walls. The distance between the bottoms of the two V-grooves forming the W-groove is 0.8 mm. The sample-to-camera distance is 1700 mm. Horizontal lines represent theoretical values of central double splitting of the diffracted beam 2Δx.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 8| Part 5| August 2001| Pages 1136-1139
doi:10.1107/S0909049501011050
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