Acute Radiation SyndromeRadiation InjuriesRadiation Injuries, ExperimentalGamma RaysRadiation DosageDose-Response Relationship, RadiationRadioactive Hazard ReleaseRadiation-Protective AgentsRadiodermatitisPhotonsWhole-Body IrradiationRadiation ToleranceRadiation PneumonitisRadiation, IonizingRadiometryRadiotherapyRadiation ProtectionCobalt RadioisotopesRadiationLinear Energy TransferProctitisEnergy MetabolismRelative Biological EffectivenessLethal Dose 50Heavy IonsSpectrometry, GammaFood IrradiationMass Casualty IncidentsCobalt IsotopesRadiation MonitoringWounds and InjuriesCosmic RadiationCesium RadioisotopesRadiation EffectsEnergy IntakeX-RaysBackground RadiationThermoluminescent DosimetryNeutronsNeoplasms, Radiation-InducedPlacental ExtractsTime FactorsCaliforniumRadiotherapy DosageMice, Inbred C57BLSurge CapacityPhosphocreatineRadiation OncologyFluoroscopyUltraviolet RaysBrain InjuriesEnergy TransferIntestinal DiseasesParticle AcceleratorsAlpha ParticlesIntestinesCell SurvivalAthletic InjuriesSpinal Cord InjuriesRadioisotopesBrain NeoplasmsReperfusion InjuryDNA DamageAdenosine TriphosphateRadiotherapy, High-EnergyRats, Sprague-DawleyRadiopharmaceuticalsSkinNecrosisApoptosisDNA RepairDeinococcusTomography, Emission-Computed, Single-PhotonCombined Modality TherapyPhosphatesRadiation-Sensitizing AgentsGastrointestinal TractRadionuclide ImagingInjury Severity ScoreNeoplasm Recurrence, LocalNeoplasmsMagnetic Resonance SpectroscopyLung InjuryRadiotherapy, Conformal