Fig. 1From: A treatment planning study of proton arc therapy for para-aortic lymph node tumors: dosimetric evaluation of conventional proton therapy, proton arc therapy, and intensity modulated radiotherapyDose distribution of (a) IMRT, (b) PBT, and (c) PAT technique in axial plane. Color wash banding is restricted to relative dose range of 11–110 %Back to article page