MineralsPhotonsRadiusBone and BonesOsteoporosisTomography, Emission-Computed, Single-PhotonElementary ParticlesPhantoms, ImagingScattering, RadiationLightRadiometryMonte Carlo MethodScintillation CountingMicroscopy, Fluorescence, MultiphotonOrganotechnetium CompoundsRadiation DosageParticle AcceleratorsRadiopharmaceuticalsTechnetium Tc 99m ExametazimeThallium RadioisotopesTechnetiumEquipment DesignEquipment Failure AnalysisTomography, Emission-ComputedOximesRadiotherapy Planning, Computer-AssistedRelative Biological EffectivenessTelluriumRadiotherapy, High-EnergyIodine RadioisotopesRadiotherapy DosageTomography, OpticalSemiconductorsProton TherapyOptical ProcessesOptics and PhotonicsGamma CamerasLasersRadioisotopesPhotometryImage Processing, Computer-AssistedDose-Response Relationship, RadiationLuminescent MeasurementsElectronsIofetamineRadiationDiagnostic ImagingSpectrometry, GammaComputer SimulationLutetiumRetinal Rod Photoreceptor CellsTime FactorsCadmium CompoundsPositron-Emission TomographySynchrotronsSensitivity and SpecificityQuantum TheoryThalliumRadionuclide ImagingHeavy Ion RadiotherapyLuminescenceRhodopsinX-RaysXenon RadioisotopesLinear Energy TransferTechnetium Tc 99m PyrophosphateFluorescenceVision, OcularTomography, X-Ray ComputedIodobenzenesTechnetium Tc 99m SestamibiReproducibility of ResultsPhotoreceptor CellsSpectrum AnalysisAbsorptiometry, PhotonPhotosynthesisRadiotherapy, Intensity-ModulatedAlgorithmsNeutronsComputer-Aided Design