RadioisotopesNeutronsNeutron DiffractionProtonsFast NeutronsIsotopesBoron Neutron Capture TherapyIsotope LabelingNeutron 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, Molecular