Temporal autocorrelation function for a diffusing-wave spectroscopy experiment with a point source and backscattering detection.
The autocorrelation function of the backscattered intensity in a diffusing-wave spectroscopy experiment that uses a point source is calculated by use of the diffusive-wave model. We show that in this approximation the calculated autocorrelation function decays faster than if the plane-source approximation were used. The design of a probe that implements this geometry is presented together with preliminary results that show the utility of the probe as a sizing tool in concentrated dispersions.
Rega
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C
Lloyd
C J
CJ
Attwood
D
D
Clarke
D
D
Geraghty
P
P