Figure 18-9

(top): X-ray small angle scattering intensity as a function of the momentum transfer Q for a 1 vol%. suspension of colloidal silica (R = 2,427 Å) in a glycerol/water mixture at 293 K. (middle): Q dependence of the relaxation rate Γ as determined from intensity correlation functions taken at various Q values. The solid line is the result of a fit to the data with D₀ as a fit parameter. (bottom): Inverse, normalized diffusion coefficient D₀/D(Q) as a function of Q [96]