Table 1.
Average relative dose difference ∊̅D10%, range difference ∊R, γ-test passing rates Pγ for all testing cases.
Phantom | Beam setup |
Energy (MeV/u) |
∊̅D10% (%) |
∊R (mm) |
Pγ (1%/1mm) (%) |
Pγ (2%/1mm) (%) |
---|---|---|---|---|---|---|
Water | Pencil beam | 100 | 0.7 | <0.1 | 99.0 | 99.0 |
250 | 0.5 | <0.1 | 99.8 | 99.8 | ||
400 | 0.9 | <0.1 | 68.6 | 99.6 | ||
Broad beam | 100 | 0.5 | <0.1 | 99.9 | 100 | |
250 | 0.4 | <0.1 | 99.8 | 99.9 | ||
400 | 0.8 | <0.1 | 93.8 | 98.2 | ||
Lung | Broad beam | 100 | 1.6 | 0.8 | 99.9 | 100 |
250 | 0.6 | 0.6 | 99.1 | 99.8 | ||
400 | 0.9 | 1.4 | 93.0 | 97.5 | ||
Soft tissue | Broad beam | 100 | 1.0 | <0.1 | 99.9 | 100 |
250 | 0.5 | <0.1 | 99.1 | 99.7 | ||
400 | 0.9 | 0.7 | 91.5 | 96.4 | ||
Bone | Broad beam | 100 | 1.0 | <0.1 | 95.9 | 97.1 |
250 | 0.6 | <0.1 | 99.7 | 99.9 | ||
400 | 0.9 | <0.1 | 79.1 | 99.3 | ||
Slab | Broad beam | 300 | 0.8 | NA | 96.0 | 99.8 |
Patient | Broad beam | 250 | 0.5 | NA | 99.6 | 99.8 |