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PTV and OAR doses for each of the five head and neck plan as a function of compensator resolution. Mean parotid dose and spinal cord D 1% (top: left to right). PTV D 2% and D 99% (bottom, left to right). Each line is data from a different patient plan. All doses are normalized to the 2 mm‐resolution compensator. All plans use 63 cm SCD, 2 TVL max thickness, and 9 beams.
