Fast semianalytical Monte Carlo simulation for time-resolved light propagation in turbid media

摘要: The statistical estimator concept, created in the nuclear engineering field, has been adapted to elaboration of a new and fast semianalytical Monte Carlo numerical simulation for time-resolved light-scattering problems. This concept also generalized case unmatched boundaries. model, discussed detail this paper, contains two stages. first stage is information generator which, each scattering event, contribution total reflectance transmittance evaluated subtracted from photon current energy. procedure reduces number photons required produce given accuracy, which makes it possible store all event positions energies. In second stage, called processor, results are used calculate analytically any desired result. Examples slabs isotropic or anisotropic scatterers when collimated-beam incidence used. Reflections at boundaries taken into account. obtained either with method classical methods very similar. However, convergence our model much better and, because separation stages, quantity related problem can be easily calculated afterward without recomputing simulation.