Table 3 Efficiency gain factor of the adaptive pMMC versus the non-adaptive (na) pMMC and full Monte Carlo calculation with Geant4 (G4)
From: Adaptive step size algorithm to increase efficiency of proton macro Monte Carlo dose calculation
100 MeV | 150 MeV | 200 MeV | 250 MeV | |||||
|---|---|---|---|---|---|---|---|---|
Phantom | na | G4 | na | G4 | na | G4 | na | G4 |
Lung & cortical bone in series | 3.4 | 182.9 | 4.8 | 233.7 | 5.0 | 250.2 | 5.6 | 284.0 |
Lung & cortical bone adjacent | 4.5 | 217.7 | 5.3 | 248.7 | 5.2 | 256.7 | 5.3 | 254.1 |
Head and neck case | 2.9 | 115.5 | 3.4 | 134.8 | 3.4 | 142.0 | 3.4 | 145.3 |