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. Author manuscript; available in PMC: 2018 Jan 15.
Published in final edited form as: Adv Drug Deliv Rev. 2016 Dec 3;109:26–44. doi: 10.1016/j.addr.2016.11.006

Figure 1.

Figure 1

Depth-dose curves for a 200 MeV proton beam: both unmodulated and with a 5 cm spread-out Bragg peak (SOBP), compared with a 16 MV x-ray beam (for 10 ×10 cm2 fields). The curves are normalized in each case to 100 at maximum dose. (Adapted from Jones, reproduced with permission).[1]