Natural SciencesMaterials SciencePhysicsAtomic PhysicsCrystal StructureSpectroscopyAtomic SpectraX-ray CrystallographyX-ray Data AnalysisX-ray DiffractionX-ray Photoelectron SpectroscopyX-ray SpectroscopyAtomic ModelsX-ray Absorption SpectroscopyX-ray Emission LinesX-ray SpectraX-ray Spectral Analysis