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Table 9 Percentage of PDD dose points passing the three Γ-criteria for varying histories at an initial beam energy of 10.5 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 (%)
512.899.473.629.0
109.499.475.230.0
256.1100.0100.077.1
65.063.8100.099.784.2