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) S-values obtained from three different sources for 1 × 106 events: geant4 (empty circle), olinda (empty triangle), and 3D-RD EGS (triangle) for 131I-filled homogenous spheres ranging in size from 1 to 600 g. The dotted line is a power law fit (D = amb) to the olinda data. (b) The difference (in percentage) between the olinda/exm and geant4 results (empty circle) as well as the difference between the 3D-RD and geant4 results (empty triangle).
