TABLE I.

Summary of phantom sets and corresponding optical properties spanned by each phantom set. The listed optical properties represent the wavelength-averaged value of the optical absorption (scattering) spectra between 450 and 650 nm.

Phantom set	Experiment type	Absorption coefficients [cm−1] (or concentration [µM])			Scattering coefficients [cm−1]
		μa range	Mean μa	[Hb]	${\mathrm{\mu }}_{\mathrm{s}}^{\prime }$ range	Mean ${\mathrm{\mu }}_{\mathrm{s}}^{\prime }$
Set 1	Varying μa, fixed ${\mathrm{\mu }}_{\mathrm{s}}^{\prime }$	0.6–4.5	2.5	7.3–49.9	15.7–17.2	16.5
Set 2	Varying ${\mathrm{\mu }}_{\mathrm{s}}^{\prime }$, fixed μa	0.8–1.5	1.2	9.8–17.7	8.3–23.2	15.0
Set 3	Varying μa, lower (fixed) ${\mathrm{\mu }}_{\mathrm{s}}^{\prime }$	0.2–1.4	0.8	5.9–20.5	7.9–8.3	8.1
	Varying μa, higher (fixed) ${\mathrm{\mu }}_{\mathrm{s}}^{\prime }$				15.7–16.5	16.1