Comparison of (a) percentage depth dose (PDD) curves and (b) lateral dose profiles at 5 cm depth for field sizes of 3×3 cm², 10×10 cm² and 20×20 cm² between Monte Carlo simulated (solid lines) and Pinnacle3 calculation results (dashed lines) for the 3-MV photon beam at 100 cm source-to-surface distance.

<p>The deviations in depth doses were shown in the lower part to the right scale.