ThermodynamicsKineticsModels, BiologicalRadiation DosageRadiation, IonizingRadiation InjuriesDose-Response Relationship, RadiationRadiation ToleranceRadiationRadiation ProtectionRadiation MonitoringRadiation OncologyCosmic RadiationRadiation Injuries, ExperimentalRadiation PneumonitisNeoplasms, Radiation-InducedGamma RaysBackground RadiationRadiotherapyRadiometryUltraviolet RaysRadiotherapy DosageRadiation EffectsRadiation-Sensitizing AgentsCombined Modality TherapyRadiation-Protective Agents