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Figure 4: (a) Measured output factors of 6 MV X-rays of TrueBeam electron medical linear accelerator from 5 cm × 5 cm to 40 cm × 40 cm using liquid ion chamber. (b) Measured output factors of 6 MV X-rays of TrueBeam electron medical linear accelerator from 1 cm × 1 cm to 4 cm × 4 cm using liquid ion chamber

Figure 4: (a) Measured output factors of 6 MV X-rays of TrueBeam electron medical linear accelerator from 5 cm × 5 cm to 40 cm × 40 cm using liquid ion chamber. (b) Measured output factors of 6 MV X-rays of TrueBeam electron medical linear accelerator from 1 cm × 1 cm to 4 cm × 4 cm using liquid ion chamber