Localization of the virtual point source used in the diffusion approximation to model a collimated beam source

X Intes LSOL, Université de Bretagne Occidentale, 6 avenue Le Gorgeu, BP 809, 29285, Brest Cedex, France

B Le Jeune LSOL, Université de Bretagne Occidentale, 6 avenue Le Gorgeu, BP 809, 29285, Brest Cedex, France

F Pellen LSOL, Université de Bretagne Occidentale, 6 avenue Le Gorgeu, BP 809, 29285, Brest Cedex, France

Y Guern LSOL, Université de Bretagne Occidentale, 6 avenue Le Gorgeu, BP 809, 29285, Brest Cedex, France

J Cariou LSOL, Université de Bretagne Occidentale, 6 avenue Le Gorgeu, BP 809, 29285, Brest Cedex, France

J Lotrian LSOL, Université de Bretagne Occidentale, 6 avenue Le Gorgeu, BP 809, 29285, Brest Cedex, France

Abstract

This paper discusses the experimental validity of a frequently assumed fact: in a highly anisotropic scattering medium considered as infinite, a collimated intensity-modulated beam source can be modelled by a point-like source located on the emissive axis, at one time the mean transport length from the source fibre tip.

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Localization of the virtual point source used in the diffusion approximation to model a collimated beam source

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Localization of the virtual point source used in the diffusion approximation to model a collimated beam source

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