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.
Comparison of gradient index (GI) and V 12Gy variation as a function of target volume, number of targets, and distance between targets and nearest organs at risk for 4 techniques. Dots are the actual value of GI or V 12Gy. Solid lines are fitting lines.
