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Figure 5
Comparison of rocking curves obtained using monolithic channel-cut crystals and double-crystal devices consisting of two parallel polished and deeply etched crystals. The parasitic scattering background in the wings of the rocking curve could be reduced by more than an order of magnitude using the latter. The continuous line indicates the rocking curve calculated by the dynamical theory of diffraction. The logarithmic representation in the inset emphasizes the expected q−6 decay which is followed by the experimental curve up to q ≃ 0.0023 nm−1.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 15| Part 4| May 2008| Pages 341-349
doi:10.1107/S0909049508008960
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