An official website of the United States government
Here's how you know
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.
Lateral profiles for different field sizes (2×2, 4×2, 6×2, 8×2, and 10×2 cm2) in the x direction, measured at the depth of maximum dose and averaged over 5 pixels in the y direction.