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.
Spectral dependence of the SPR from the measurements and the GATE simulations at 40, 50, and 60 kVp. Solid circles and their associated error bars are average values and differences of the measured SPRs by the beam stop and aperture methods after background scatter subtraction. Solid curves are the simulated SPRs for the phantom only.
