| Prescribed dose error (%) | Gamma passing rate (%) | ||
| H & N | Prostate | ||
| Increasing | 2.0 | 98.1 ± 0.3 | 98.8 ± 1.0 |
| 4.0 | 96.0 ± 1.2 | 91.1 ± 6.0 | |
| 6.0 | 89.3 ± 2.9 | 82.8 ± 8.1 | |
| Decreasing | −2.0 | 95.4 ± 4.2 | 95.4 ± 4.9 |
| −4.0 | 88.9 ± 8.7 | 85.3 ± 8.0 | |
| −6.0 | 80.3 ± 12.2 | 75.9 ± 5.3 | |