Figure 2: Sensitivity to the form of the phase function and comparison with other light transport approximations.
From: Photon diffusion near the point-of-entry in anisotropically scattering turbid media

(a) Dimensionless reflectance for the H–G and Mie phase functions with g=0.95 and
=0.01. Blue lines and circles—H–G phase function, red lines and circles—Mie phase function, where lines are for PFC diffusion theory and circles are for the MC simulations. Black dashed line—the standard DA. (b) Comparison of PFC diffusion theory with the standard DA, the P3 and δ−P1 approximations and MC simulations for the H–G phase function with g=0.95 and
=0.01. The error plot shows the percentage error ((R−RMC)/RMC×100%), between each of the approximations, R, and MC simulation, RMC.