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Figure 4
Extraction of the mean size for the particle-based simulation (a)–(c) and experiment (d). (a) TTC calculated for the model of identical particles, which grow with constant speed. (b) Dependency of contrast taken a pixel away from the diagonal in (a) (marked with a white dashed line) as a function of average size of the system ξ(tage) divided to the size 2π/q corresponding to the investigated q region. (c) Evolution of the intensity profile for the growth process. (d) Extraction of sizes from the experiment. The behavior of the characteristic size of the system, calculated with different methods. Characteristic length, obtained from the peak position in the scattering intensity ξ = 2π/qpeak, is plotted for USAXS measurements. The purple line corresponds to the theoretically predicted increase of characteristic length with time following a power of 1/3 due to coarsening mechanisms based on diffusion or coalescence (Das et al., 2015BB18). Blue markers represent the average size of the domains calculated from XPCS measurements, following the appearance of tail features at the TTC for different q values.

IUCrJ
Volume 9| Part 4| July 2022| Pages 439-448
ISSN: 2052-2525
https://doi.org/10.1107/S2052252522004560