Fig.1 Comparison of dose distribution in anthropomorphic phantom between (a) the conventional calculation and (b) RadioTherapy package based on Particle and Heavy Ion Transport code System (RT-PHITS) for carbon ion radiotherapy (CIRT)
RT-PHITS for CIRT can evaluate the dose distribution in the whole body, while the conventional calculation can only evaluate the dose along the beam axis. The “+” sign indicates the isocenter (100%), and the pink contour surrounding the isocenter indicates the tumor region.
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