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Figure 3
(a) The mask used to detect hits and (b) the background mask. Note that, as a result of the non-zero tilt of the liquid injector nozzle, the near-meridional peaks generally appear only in the upper half of a diffraction pattern.

IUCrJ
Volume 4| Part 6| November 2017| Pages 795-811
ISSN: 2052-2525
https://doi.org/10.1107/S2052252517014324