Table 3 Percentage of lateral dose profile points passing the three Γ-criteria for varying histories at an initial beam energy of 6.26 MeV
From: Linac photon beam fine-tuning in PRIMO using the gamma-index analysis toolkit
| Number of Histories (106) | Average Dose Uncertainty (%) | 3 % /3mm (%) | 2 % /2mm (%) | 1 % /1mm (%) |
|---|---|---|---|---|
| 2 | 36.4 | 100.0 | 96.9 | 59.6 |
| 5 | 18.0 | 100.0 | 93.2 | 54.7 |
| 10 | 12.1 | 100.0 | 96.9 | 58.4 |
| 25 | 7.9 | 99.4 | 81.4 | 47.8 |
| 100 | 4.1 | 99.4 | 95.7 | 75.2 |