Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Results obtained with the three-layered phantom carried out over a range of thicknesses for the top layer (d1 = 0.5 - 2 cm). Estimated μa values were obtained with the sTR method (open circles) and the iMA method (filled circles). In all cases, μa was 0.15 cm−1 for the middle layer and 0.10 cm−1 for the other two layers. The thickness of the middle layer was 1 cm in all cases. The error bars represent standard deviation of μa across a series of 200 measured DTOFs.
