Aggregates

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Fit model: Aggregates (Lorentzian term)




Sc=Sc_scal./(1+(Sc_corr.*q).^2).^Sc_exp;



Parameters:


parameter

description

Sc_scal

scaling parameter proportional to average mass of cluster

Sc_corr

proportional to characteristic size of the clusters

Sc_exp

exponent with p ~ df/2

df

fractal dimension




Remarks:

Term to take into account excess scattering at low q which originates from clusters. Sc corresponds to the structure factor of the clusters.




References:

P. Schmidt, in Modern Aspects of Small-Angle Scattering, edited by H. Brumberger, Kluwer Academic, Dordrecht, 1995, p. 1.