Abstract
A time-dependent Monte Carlo method is developed for modeling the transient radiative transfer within absorbing and scattering media. It is well known that the transmitted and reflected signal from a short-pulse incident radiation to the scattering medium has very long, extended temporal spread. However, two important but yet to be clarified issues are: (1) the relative and combined influences of the multiple scattering and reflective boundary on the transient radiative transfer process; and (2) the effect of the incident temporal pulse width and pulse shape on the radiative transport. It is found that the pulse width and shape has little effect on the transient radiative transport process when the pulse temporal width is much smaller than the pulse transmission time through the one-dimensional slab. The stochastic simulation of time-of-flight of photon compares very well with the results obtained by a recently developed Volterra integral equation formulation of the transient radiative transfer.
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