MR images acquired using GE (top row) and IRGE (bottom row) sequences during proton irradiation, with expected proton ranges of (left to right) 4.2, 6.4, 8.6 and 12.2 cm at 9 nA. (Courtesy: S Schellhammer, HZDR/OncoRay)
Proton therapy holds the promise of delivering highly conformal dose distributions to a target tumou
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Tami Freeman
is an online editor for Physics World