Table 4.
Electron output factor verification
Energy | Cone (cm²) | Cutout (cm²) | OF % (Meas‐Calc)/average |
---|---|---|---|
6 MeV | 6 × 6 | 2 × 2 | 6.4 |
10 × 10 | 8 × 8 | −0.6 | |
20 × 20 | 17 × 17 | −0.5 | |
25 × 25 | 15 × 15 | 0.3 | |
9 MeV | 6 × 6 | 3 × 3 | 4.5 |
14 × 14 | 10 × 10 | 1.8 | |
20 × 20 | 12 × 12 | −1.8 | |
25 × 25 | 20 × 20 | −1.6 | |
12 MeV | 6 × 6 | 4 × 4 | 0.5 |
10 × 10 | 6 × 6 | 1.0 | |
14 × 14 | 12 × 12 | 0.8 | |
20 × 20 | 20 × 20 | 0.2 | |
15 MeV | 10 × 10 | 3 × 3 | 0.7 |
14 × 14 | 12 × 12 | −1.9 | |
20 × 20 | 12 × 12 | −1.5 | |
25 × 25 | 10 × 10 | −1.4 |