Determination of pair correlation functions of dense colloidal systems by means of indirect Fourier transformation.
The interparticle pair correlation gr function is determined by the small angle scattering data of interacting, monodisperse, globular colloidal particles. The new approach to this problem requires that the form factor and the particle number density must be known. Instrumental broadening effects and experimental imperfections are included in a way that makes it unnecessary to deconvolute the scattering function from beam profiles. The applicability of the approach is demonstrated by the simulated data of a charged colloidal dispersion and by way of the neutron scattering data of nonionic micellar solutions. In both cases, gr functions are obtained that are in good agreement with the known behavior of the systems.
Fritz
Gerhard
G
Institut für Chemie, Karl-Franzens Universität Graz, Heinrichstrasse 28, 8010 Graz, Austria. gerhard.frizt@uni-graz.at