Technical Advances and Pitfalls in Head and Neck Radiotherapy

Figure 5

Depth dose curves for a 6 MV photon beam (solid line), a 170 MeV proton beam (dashed line), and a 330 MeV/amu carbon ion beam (dotted line) as a function of depth in a water phantom. The beams have been arbitrarily normalized to 100 at their maxima.