engleski

Monte Carlo Modeling of Light Scattering in Paper

The theory of radiation transmission describes the interaction of radiation with the medium which scatters and absorbs the light. The solutions of radiation transport, which were obtained during the previous century, have been applied on the broad fan of problems from neutron diffusion, optical tomography, spreading of infra-red and visible light in atmosphere to paper and prints. At the beginning the majority of problems of radiation transport were unbeatable, but with the improvement of mathematical tools and approximations, and the computers become quicker and powerful the solutions become more specialized and effective. The first approximate solution was given by Schuster (1905) who presumed in the solution the radiation in only forward and backward direction. Under this influence Kubelka and Munk (1931) have developed their well known model. The original Kubelka-Munk theory was developed for spreading the light in parallel colored layers boundlessly extended in xy direction (Kubelka , Emmel ) (in order to avoid the problems connected with the boundary conditions). The basic assumption of Kubelka- Munk theory is that the layer is uniform and the light distribution within the layer is diffuse. From these assumptions the transport of light in the layer was simplified

light scattering ; Monte Carlo method ; optical dot gain ; substrate

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