The multiple scattering's contribution to the irradiance at " x " is modified by the individual particle scattering coefficient, the number concentration of particles, and the depth of the beam.
12.
Where g is the anisotropy of biological tissue, which has a representative value of 0.9 . Figure 5 shows a plot of transport scattering coefficient spectrum in breast tissue, which has a wavelength dependence of \ lambda \, ^ {-0.7 }.
13.
Duntley, Seibert Q ., Richard W . Johnson, and Jacqueline I . Gordon . " Airborne measurements of atmospheric volume scattering coefficients in northern Europe, fall 1976 . " Interim Report Scripps Institution of Oceanography, San Diego, CA . Visibility Lab . 1 ( 1978 ).