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Measured and calculated percentage depth dose curves in a slab-phantom. Predicted percentage depth dose curves by AAA and Acuros XB grid sizes 2.5 and 1.0 mm compared to measured data using a slab-phantom with (top) 1.0x1.0 cm2 and (bottom) 4.0x4.0 cm2 6 MV AP photon beams.
