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Table 1 Acquisition conditions for calculated and measured dose distribution

From: To propose adding index of achievement (IOA) to IMRT QA process

Active area (cm × cm) 40 × 40 40 × 30
Calculated matrix / Pixel pitch (mm) 1024 × 1024 / 0.393 512 × 384 / 0.786
Measured matrix / Pixel pitch (mm) 1190 × 1190 / 0.336 1024 × 768 / 0.392
EPID model a-Si 1200 a-Si 1000
Head and Neck (cases) 21 9
Prostate (cases) 13 17