Radiation DosageNuclear WeaponsRadiation InjuriesDose-Response Relationship, RadiationFluoroscopyRadiation, IonizingRadiation ToleranceRadiationRadiation ProtectionRadiation MonitoringRadiation OncologyCosmic RadiationRadiation Injuries, ExperimentalRadiation PneumonitisNeoplasms, Radiation-InducedGamma RaysBackground RadiationRadiotherapyRadiometryRadiotherapy DosageUltraviolet RaysRadiation EffectsRadiation-Sensitizing AgentsCombined Modality TherapyRadiation-Protective AgentsAcute Radiation SyndromeRadioactive Hazard ReleaseCobalt RadioisotopesRadiobiologyRadiotherapy, ConformalX-RaysRadiation Hybrid MappingDose FractionationRadiotherapy, Intensity-ModulatedBrachytherapyDNA DamageLinear Energy TransferRadiodermatitisRadiotherapy Planning, Computer-AssistedRadiotherapy, AdjuvantRadiation GeneticsLeukemia, Radiation-InducedNuclear WarfareBody BurdenSynchrotronsRadiation, NonionizingRelative Biological EffectivenessElectromagnetic RadiationParticle AcceleratorsCesium RadioisotopesAbnormalities, Radiation-InducedWhole-Body IrradiationSunlightThermoluminescent DosimetryBeta ParticlesDNA RepairTechnology, RadiologicRadiographyTime FactorsRadiosurgeryBrain NeoplasmsRadioactive FalloutSolar ActivityTomography, X-Ray ComputedTreatment OutcomeRadiotherapy, High-EnergyChernobyl Nuclear AccidentCell SurvivalHead and Neck NeoplasmsNeoplasmsCranial IrradiationHeavy IonsInfrared RaysFilm DosimetryRadiography, InterventionalRadiotherapy, Computer-AssistedRadioisotopesHealth Physics