Table 2.
The SVir (cm) results from Monte Carlo (MC) simulations and inverse square distance (ISL) methods in different electron energies and field sizes. The percent differences (PDs) between the results from MC and ISL methods are also presented.
| Field size (cm2) | 10 × 10 |
15 × 15 |
20 × 20 |
25 × 25 |
||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Electron energy (MeV) | MC | ISL | PD (%) | MC | ISL | PD (%) | MC | ISL | PD (%) | MC | ISL | PD (%) |
| 5 | 73.9 | 87.1 | 18 | 85.7 | 96.0 | 12 | 89 | 104.4 | 17 | 93.5 | 105.7 | 13 |
| 7 | 83.2 | 92.6 | 11 | 95.4 | 98.8 | 4 | 90.1 | 103.4 | 15 | 98.7 | 101.6 | 3 |
| 8 | 83.7 | 95 | 14 | 96.8 | 99.5 | 3 | 90.7 | 104.3 | 15 | 98.3 | 101.6 | 3 |
| 10 | 85.9 | 95.8 | 12 | 96.3 | 100.6 | 4 | 90.3 | 104.8 | 16 | 99.0 | 104.1 | 5 |
| 12 | 84.1 | 95.3 | 13 | 96.5 | 101.4 | 5 | 91.3 | 105.1 | 15 | 97.9 | 103.1 | 5 |
| 14 | 87.5 | 93.3 | 7 | 97.7 | 98.7 | 1 | 89.3 | 103.7 | 16 | 96.0 | 101.8 | 6 |