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Experimental evaluation of an anisotropic scattering model of a slab geometry

Hebden, JC; Guerrero, JJG; Chernomordik, V; Gandjbakhche, AH; (2004) Experimental evaluation of an anisotropic scattering model of a slab geometry. OPT LETT , 29 (21) 2518 - 2520.

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Abstract

A model has been developed based on random walk theory that allows the diffusion of light along a principal axis to differ from that in orthogonal directions. We present expressions that describe the time-resolved intensity measured across a slab and on the surface of a semi-infinite medium for a principal axis oriented parallel or perpendicular to the surface. The model of time-resolved transmittance is compared with experimental data acquired by use of a phantom consisting of wax fibers arranged within a solid cube of resin. It is shown that a single set of optical parameters is sufficient to model the experimental measurements acquired across all three orientations of the cube. (C) 2004 Optical Society of America.

Type:Article
Title:Experimental evaluation of an anisotropic scattering model of a slab geometry
Keywords:OPTICAL-PROPERTIES, PHOTON MIGRATION, CONTRAST FUNCTIONS, TRANSILLUMINATION, DIFFUSION, TISSUES
UCL classification:UCL > School of BEAMS > Faculty of Engineering Science > Medical Physics and Bioengineering

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