On Phantom Experiments of the Photon Migration Model in Tissues

Light-tissue interaction is common in clinical treatments and medical research, therefore investigation of light path in irradiated tissues is of high importance. In this research, reflected light intensity measurements from different homogeneous phantoms, combined with numerical simulations, have been used for the investigation of phantoms absorption properties. Our results suggest a good fitting between the theoretical model and the random walk simulations, enabling the extraction of the lattice absorption parameter. Yet, as long as low scattering phantom experiments are concerned, the photon migration model does not provide an adequate description for the phantom absorption coefficient