Diffusion Approximation: RTE

This lecture covers the Diffusion Approximation method for solving the Radiative Transport Equation (RTE) in tissue optics. The Diffusion Equation simplifies the RTE for highly scattered media, allowing for analytical or numerical solutions. The limitations and applications of the diffusion approximation in photon propagation modeling are discussed, emphasizing the importance of highly scattered light. Monte Carlo simulations are presented as a powerful tool for predicting light transport in turbid media, providing detailed insights into photon interactions. Various scenarios, such as point sources and broad illumination, are analyzed to understand light distribution in tissue. The lecture also delves into the practical aspects of Monte Carlo simulations, including random sampling techniques and termination criteria.