Isotope LabelingNeutronsNeutron DiffractionProtonsFast NeutronsIsotopesBoron Neutron Capture TherapyNeutron Activation AnalysisProton PumpsNitrogen IsotopesOxygen IsotopesCarbon IsotopesBoronScattering, RadiationDeuteriumNeutron Capture TherapyProton Pump InhibitorsNuclear FissionDeuterium OxideActivation AnalysisZinc IsotopesRelative Biological EffectivenessBoron CompoundsMagnetic Resonance SpectroscopyWaterSulfur IsotopesHydrogen-Ion ConcentrationScattering, Small AngleHydrogenLinear Energy TransferRadiotherapy, High-EnergyIron IsotopesBoranesCaliforniumModels, MolecularParticle AcceleratorsKineticsSpectrometry, GammaNuclear PhysicsRadiometryCobalt RadioisotopesProton-Motive ForceRadiation DosageStrontium IsotopesBacteriorhodopsinsProtein ConformationHydrogen BondingX-RaysModels, ChemicalPhosphoric Triester HydrolasesBorohydridesRadiation MonitoringSolutionsRadioisotope Dilution TechniqueDose-Response Relationship, RadiationMass SpectrometryRadioactivityX-Ray DiffractionMoonRadioactive PollutantsMolecular ConformationRadioactive Hazard ReleaseGamma RaysRadioisotopesSpectrum AnalysisPhotonsOxidation-Reduction