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.
BSRF values (a) measured locally, and predicted by two other authors, for beam qualities of approximately 5 mm Al and applicator sizes of 3 cm and 10 cm; and locally measured values (b) expressed as BSF. Error bars have been omitted for clarity.
