EntityQ5660554· pop 6· linked from 154 articlesHarold E. JohnsSign in to savemedical physicist (1915–1998)ConnectionsChinaCountrymathematicsEntityphysicsEntityWorld War IIConceptcancerEntitySichuanEntityX-rayEntityWayback MachineEntityradarEntitygamma rayEntityTacomaEntityHamiltonEntityLondonEntityUniversity of TorontoEntityFrederick BantingEntityadaptive radiation therapyEntityionizing radiationEntityDoctor of PhilosophyEntityJohn James Rickard MacleodEntityradiographyEntityCategories1915 births1998 deathsAcademic staff of the University of SaskatchewanAcademic staff of the University of TorontoCanadian medical researchersCanadian physicistsMcMaster University alumniMedical physicistsOfficers of the Order of CanadaPhysicists from SichuanPresidents of the Canadian Association of PhysicistsUniversity of Toronto alumni