Radioactive Hazard ReleaseChemical Hazard ReleaseAmericiumRadiation ProtectionGamma RaysCobalt IsotopesDose-Response Relationship, RadiationCobalt RadioisotopesRadiation DosageRadiationFood IrradiationRadiation-Protective AgentsRadiation, IonizingRadiation ToleranceRadiation EffectsBackground RadiationRadiation InjuriesDeinococcusProportional Hazards ModelsWhole-Body IrradiationUltraviolet RaysRadiation Injuries, ExperimentalRadonCaliforniumDNA DamageColeusIridium RadioisotopesNeoplasms, Radiation-InducedHeavy IonsSterilizationBeta ParticlesLeukemia, Radiation-InducedTime FactorsRadiometryBrachytherapyRadiation MonitoringNeutronsDNA RepairSporesMicrococcusRadiotherapyApoptosisCell SurvivalRadiation OncologyRadiotherapy DosageCells, CulturedTumor Suppressor Protein p53Radiation PneumonitisFollow-Up StudiesCombined Modality TherapyX-RaysCosmic RadiationRisk Factors