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.
| Shape of the source | Size of the source (mm) | Number of the center | Number of the source |
|---|---|---|---|
| Ellipsoid | Radius 1 | 180 | 720 |
| Cylinder | Long axis 2; Short axis 1.2; Height 4 | 160 | 640 |
| Cube | Length 4; Width 2; Height 2 | 160 | 640 |
