| Prescribed dose error (%) | Gamma passing rate (%) | ||
| H & N | Prostate | ||
| Increasing | 2.0 | 97.9 ± 1.1 | 98.9 ± 1.1 |
| 4.0 | 94.8 ± 1.2 | 97.4 ± 1.5 | |
| 6.0 | 84.3 ± 6.3 | 96.0 ± 1.8 | |
| Decreasing | −2.0 | 95.1 ± 3.1 | 98.8 ± 0.9 |
| −4.0 | 85.5 ± 8.1 | 97.3 ± 1.2 | |
| −6.0 | 75.6 ± 11.3 | 95.5 ± 2.1 | |