Table 14 Percentage of lateral dose profile points passing the three Γ-criteria with the initial electron beam energy fixed at 10.5 MeV, the energy FWHM at 0.120 MeV and beam divergence at default value of 0.The number of histories is 2.5 × 107
From: Linac photon beam fine-tuning in PRIMO using the gamma-index analysis toolkit
Focal Spot FWHM (cm) | Average Dose Uncertainty (%) | 3 % /3mm (%) | 2 % /2mm (%) | 1 % /1mm (%) |
|---|---|---|---|---|
0.10 | 5.9 | 100.0 | 97.5 | 71.4 |
0.12 | 5.9 | 100.0 | 100.0 | 73.9 |
0.13 | 5.9 | 99.4 | 91.3 | 66.5 |