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.
A 4-cm SOBP obtained using a combination of mono-directional proton and carbon ion pencil beams while optimizing for a constant RBE in the target volume. The left and right panels show RBE-weighted dose and RBE along the central axis of the field. The plan was optimized using the LEM-IV model for the proton and carbon ion beams with parameters for human salivary gland cells. The area with the fine stripes marks the target volume.
