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Figure 4
(a) Distribution of measured lamella thicknesses and (b) distribution of the variation in lamella thickness as measured by the interquartile range of the thickness within each lamella. The median thicknesses of a crystal milled with argon, xenon and gallium are 160, 144 and 152 nm, respectively. The median variation in thickness within a lamella milled with argon, xenon and gallium is 18, 27 and 15 nm, respectively.

IUCrJ
Volume 10| Part 3| May 2023| Pages 270-287
ISSN: 2052-2525
https://doi.org/10.1107/S2052252523001902