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. Author manuscript; available in PMC: 2013 Feb 15.
Published in final edited form as: Neuroimage. 2011 Oct 21;59(4):3933–3940. doi: 10.1016/j.neuroimage.2011.10.054

Table 3.

Optical properties assigned to the different tissue types for the Monte Carlo simulations. Absorption coefficient μa [mm−1], scattering coefficients μs [mm−1], anisotropic factors g and refractive indexes n. The brain tissue includes gray and white matter. Values were computed using the method given in Strangman et al. (2003).

Tissue λ = 690 nm
 λ = 830 nm
μ a μ s g n μ a0 μ s g n
Scalp 0.0159 8.000 0.900 1.4 0.0191 6.600 0.900 1.4
Skull 0.0101 10.00 0.900 1.4 0.0136 8.600 0.900 1.4
CSF 0.0004 0.100 0.900 1.4 0.0026 0.100 0.900 1.4
Brain 0.0178 12.50 0.900 1.4 0.0186 11.10 0.900 1.4
Pial veins 0.5745 74.50 0.985 1.4 0.4758 67.50 0.992 1.4