Radiation DosageRadiation, IonizingRadiation InjuriesDose-Response Relationship, RadiationRadiationRadiation ToleranceRadiation ProtectionRadiation MonitoringPositron-Emission TomographyRadiation OncologyOtoacoustic Emissions, SpontaneousTomography, Emission-ComputedCosmic RadiationRadiation Injuries, ExperimentalRadiation PneumonitisRadiopharmaceuticalsFluorodeoxyglucose F18Neoplasms, Radiation-InducedGamma RaysVehicle EmissionsRadiotherapyBackground RadiationRadiometryRadiotherapy DosageUltraviolet RaysTomography, Emission-Computed, Single-PhotonRadiation EffectsCombined Modality TherapyRadiation-Sensitizing AgentsRadiation-Protective AgentsTomography, X-Ray ComputedX-RaysFluorine RadioisotopesAcute Radiation SyndromeSpectrometry, Mass, Fast Atom BombardmentGreenhouse EffectSpectrometry, FluorescenceCobalt RadioisotopesRadioactive Hazard ReleaseRadiobiologyRadiotherapy, ConformalTime FactorsRadiation Hybrid MappingDose FractionationRadiotherapy, Intensity-ModulatedDNA DamagePower PlantsRadiotherapy Planning, Computer-AssistedModels, MolecularRadioisotopesMultimodal ImagingBrachytherapyCarbon FootprintLinear Energy TransferRadiodermatitisAir PollutantsMethaneSynchrotronsAtmosphereRadiotherapy, AdjuvantCarbon RadioisotopesBrainBody BurdenTechnology, RadiologicRadiation GeneticsElectromagnetic RadiationLeukemia, Radiation-InducedPhantoms, ImagingNuclear WarfareParticle AcceleratorsRelative Biological EffectivenessTreatment OutcomeRadiation, NonionizingMolecular StructureSpectrometry, X-Ray EmissionPhotonsBrain NeoplasmsMagnetic Resonance ImagingSensitivity and SpecificityKineticsPentanesProtein ConformationNeoplasmsInfrared RaysMagnetic Resonance SpectroscopyCesium RadioisotopesCrystallography, X-RayThermoluminescent DosimetryBeta ParticlesSunlightEnvironmental MonitoringFluoroscopyAbnormalities, Radiation-InducedCarbonScattering, RadiationVolatilizationIodine RadioisotopesSpectrum AnalysisMolecular Sequence DataElectrons