Abstract
Stabilization procedures are used to deduce the distance distribution function p(r) for the specific case of inhomogeneous particles where the scattering curve I(q) is dominated by a peak resulting from the particle form factor. The system sodium dodecyl sulfate (SLS)/water micellar solution is studied by small-angle X-ray scattering for low concentrations (up to 9 wt% of SLS). Subsequent computation of the electron-density distribution ρ(r) from the function p(r) confirms the existence of micellar anisometry, which is also deduced from Dmax values. The modelling of ρ(r) by two- and three-step functions is discussed; both give reasonable agreement with the p(r) function.
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