The experimental values of the scattering cross sections of cellulose membrane filters and kaolin layers are determined as a function of wavelength, pore size and void volume, by using a photon diffusion model. The pore sizes and void volumes are determined experimentally by mercury penetration porosimetry. It is found that the rate of change of the scattering cross section with wavelength as a function of pore dimension enables pore sizes to be determined nondestructively from reflectance measurements.
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L. F. Gate (1972) studied this question.
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