title: The more important heavy charged particle radiotherapy of the future is more likely to be with heavy ions rather than protons.
authors.affiliation: Heidelberg University Hospital, Department of Radiation Oncology and Radiotherapy, Heidelberg Ion Beam Therapy Center INF 450, 69120 Heidelberg, Germany. Oliver.Jaekel@med.uni-heidelberg.de
authors.forename: Oliver
authors.initials: O
authors.lastname: Jäkel
authors.forename: Alfred R
authors.initials: AR
authors.lastname: Smith
authors.forename: Colin G
authors.initials: CG
authors.lastname: Orton
mesh_terms: D063193:Heavy Ion Radiotherapy / Q000639:trends*; D006801:Humans; D009369:Neoplasms / Q000532:radiotherapy; D055585:Physical Phenomena; D061766:Proton Therapy / Q000639:trends*