Particle AcceleratorsHydrogenRadiotherapy, High-EnergyHydrogen BondingParticle SizeHydrogen PeroxideRadiometric DatingHydrogen SulfideArchaeologyRadiotherapy Planning, Computer-AssistedRadiosurgeryFilm DosimetryMass SpectrometryRadiometryPhotonsHeavy IonsAgrochemicalsRadiation DosageFiducial MarkersCarbon RadioisotopesRadiotherapy DosageEquipment DesignEquipment Failure AnalysisRadiotherapy, Intensity-ModulatedTamaricaceaeNeutronsRelative Biological EffectivenessAnalytic Sample Preparation MethodsHeavy Ion RadiotherapyComputer-Aided DesignDose-Response Relationship, RadiationWaxesPlasticizersRadiotherapy, Image-GuidedRadiation MonitoringPhantoms, ImagingScattering, Radiation