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Table 7 Percentage of lateral dose profile points passing the three Γ-criteria with the initial electron beam energy fixed at 6.26 MeV, the energy FWHM at 0.150 MeV, and the focal spot FWHM at 0.15 cm. The number of histories is 2.5 × 107

From: Linac photon beam fine-tuning in PRIMO using the gamma-index analysis toolkit

Beam DivergenceAverage Dose Uncertainty (%)3 % /3mm (%)2 % /2mm (%)1 % /1mm (%)
108.0100.093.848.4
208.0100.087.656.5
308.1100.098.875.8
408.2100.098.860.2