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.
Proton Bragg peaks in 12 different tissues. Compositions were predicted by SECT and DECT. Ranges (90% distal falloff) were compared to reference ranges and are summarized in Table 4. For the HCO material, the carbon and oxygen mass fractions were varied by 10%, reference composition was H = 10%, C = 20%, O = 70%.
