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Figure 2
Defocusing length [\overline{FD}] and blurring B versus goniometer angle θ and distance from the detector centre d. (a) shows the angular dependence of the defocusing length for several positions on the detector. (b) shows the variation of [\overline{FD}] on the detector for fixed goniometer position. The inset shows a zoom to the high-angle curve. (c) shows the angular dependence of the blurring, while (d) shows the variation of B along the detector for certain fixed angles. (c) and (d) are shown for variable slits (full lines) and fixed slits (dashed lines). The parameters used for the calculations are L = 330 mm, [\alpha = 0.44]° and [S_0 = \infty] for the fixed-slit case and S = 12 mm in the case of variable slits.

Journal logoJOURNAL OF
APPLIED
CRYSTALLOGRAPHY
ISSN: 1600-5767
Volume 48| Part 2| March 2015| Pages 613-618
doi:10.1107/S1600576715003465
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