Fig. 9.

Representative look-up tables for multiple source detector separations: (a) 0.37 mm, (b) 0.74 mm, and (c) 1.11 mm. (d) Average error in measuring scattering and absorption properties of tissue phantoms as a function of S-D separation. Errors bars represent one standard deviation. The validation phantoms were constructed over the same range of ${\mu }_a$ and ${\mu }_s^{\prime }$ as described in Sec. 2.1.