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.
Typical MLC positions resulting from Dual Arc optimization. In Dual Arc VMAT, segments are grouped into arcs such that leaf travel is minimized during each rotation. In the example shown in this figure, arc 1 contains segments with leaves positioned more to the left, arc 2 to the right of the field.
