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Figure 6
Test of the collimation system by measuring USAXS profiles of micrometre-sized polystyrene latex particles (about 2 µm in diameter) with low polydispersity in a water/ethanol mixture. Panel (a) demonstrates the improved angular resolution in the horizontal direction (by partial integration) when comparing measurements made with a moderately slit collimated beam [configuration (A)] and using the Si-333 crystal collimator [configuration (B)]. Panel (b) compares the angular resolution in the vertical and horizontal direction when using Si-333 crystal collimation. Higher-order oscillations are even better resolved horizontally and the corresponding resolution is Δq = 2.35 × 10−4 nm−1 (continuous line).

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 26| Part 2| March 2019| Pages 439-444
https://doi.org/10.1107/S1600577518016892
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