Applied Physics Letters · 1997 · 27 citations · 4 references
EngineeringMicroscopyAdvanced ImagingX-ray ImagingInternal StructureSeparated CrystalsMicroscopy MethodOptical PropertiesRadiation ImagingNew MethodRadiologyHealth SciencesMedical ImagingPhysicsHigh-energy RadiationStructural ImagingCrystallographyPhase RetrievalX-ray DiffractionBiomedical ImagingApplied PhysicsNondestructive MethodQuantitative Phase ImagingImagingX-ray OpticTomographyDiffractive Optic
A nondestructive method for structural imaging is proposed. The method is based on direct measurements of phase and amplitude changes in a two-dimensional x-ray image. A standing wave is formed between two separated crystals allowing high-resolution imaging of the complex refractive index. A comprehensive analysis of the amplitude-phase contrast is possible because of the precisely controlled variation of the phases between the reference and reflected beams from a crystalline mirror.
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Phase-contrast imaging of weakly absorbing materials using hard X-rays
Timothy J. Davis, D. Gao, Timur E. Gureyev et al. · Nature · 1995 · 984 citations