Figure 4.

Kratky plot of scattering curves calculated from scattering curves of Pb²⁺ ions confined in a cube of 1 nm side length by Monte Carlo simulation under the condition of a standard SAXS experiment (a). For the Pb²⁺ ions a spherical form factor with a radius of 0.119 nm was assumed. The structure factor of 5, 20, 40, 80, and 100 Pb ions with randomly-distributed distances inside a real gas was simulated. The curves are normalized to N. The same simulations have been repeated for the real gas under the condition of ASAXS measurements using point-like scattering centers. For q-values beyond 20 nm⁻¹ the simulated curves are divided by 10 in order to better visualize (b).