Question: What is proton beam therapy?Answer: One possible therapy for certain conditions, including certain cancers, is to ablate/destroy abnormal/problematic cells/tissue with delivered energy.Many people are familiar with X-ray radiation treatment, XRT, which does this by delivering the energy with photons, massless particles. This energy is delivered along the entire pathway of the beam, so en route and after leaving the target tissue some of the energy is delivered to [...]