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.
Calculated dose profile (solid lines) and dose profile measured using film (broken lines) for a single segmented field, with the modulation parallel to the direction of leaf motion. (a) Field defined by both MLC leaves and collimators. (b) Field defined by MLC leaves only.
