Supervoltage beam films.
D004307:Dose-Response Relationship, Radiation; D006801:Humans; D008670:Metals; D011829:Radiation Dosage; D011834:Radiation Monitoring / Q000295:instrumentation*; D011882:Radiotherapy, High-Energy / Q000295:instrumentation*; D013679:Technology, Radiologic / Q000295:instrumentation
D008670:Metals