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Figure 9
The dependence of q and Δq as a function of distance. The solid line represents q-values from equation (9)[link] assuming a sample width of 3 mm. The shaded region represents Δq accounting for the aperture sizes of (a) 1.0 mm and (b) 0.5 mm. As can be seen in the two figures above, Δq becomes larger at large momentum transfer values, which can limit on how high a momentum transfer is measurable; in that case one can resort to even smaller annular slit widths albeit at reduced data collection rate.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 29| Part 3| May 2022| Pages 677-686
https://doi.org/10.1107/S1600577522002843
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