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Transverse beam profiles approximately at the proximal, center, and distal planes of the DRV for a field of 27 cm water range, 10 cm SOBP, and constrained by a 10 cm physical diameter aperture 10 cm from isocenter. The field size projected at isocenter is approximately 10.9 cm in diameter. The measurements were performed in this case with the MPIC and a comparison to dose distribution calculation from the treatment planning system (XiO) is shown.
