Fig. 4.

The individual data points are corrected, normalized diffuse reflectance measurements made at 780 nm in a representative RCC. Each point was acquired at a different source-detector separation [r (mm)]. Error bars are the standard deviations of three repeated measurements of the same sample. The fit of the $P_3$ model to these data yielded optical properties of ${\mu }_a=0.072{\mathrm{mm}}^{-1}$ and ${\mu }_s^{\prime }=1.40{\mathrm{mm}}^{-1}$.