Fig. 6.
Spoke film acquired with copper rings to assess photon fluence free of Lorentz force interference. The radius of the locus of isocenter was 0.38 mm
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.