Abstract: A finite element model is developed to simulate short pulsed laser in turbid media by solving a transient radiative transfer equation. The model employs diffuse synthetic acceleration to reduce computation time and improve solution efficiency, especially for scattering dominated media, It indicates that the model should adopt analytical formulation to deal with scattering term produced by pulsed laser since it accurately simulates sharp changed wave-front without any numerical diffusion and oscillation. Computation time of diffusion synthetic acceleration is about 50% to 60% that of source iteration.

Key words: finite element, transient radiative transfer, absorbing and scattering media