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Abstract
Formulas for light propagation in biotissue with cylindrical boundaries are deduced. A model simulating light propagation in one-layered biotissue with a cylindrical boundary is established. Simulation results of the density distribution of absorbed photons are shown when a circularly flat beam is incident on the biotissue. The model can easily be extended to multilayered tissues with cylindrical boundary.
Acknowledgments
This work is supported by the Natural Science Foundation of China under Grant No. 60278007 and the Natural Science Foundation of Tianjin under Grant No. 033601311.