Latest Developments in Diffracion Enhanced Imaging在衍射增强成像的必威体育精装版进展.pptVIP

Interaction of X-rays with Matter and Imaging Gocha Khelashvili Assistant Research Professor of Physics Illinois Institute of Technology Research Medical Physicist EXELAR Medical Corporation The Plan X-ray Interactions with Matter Used at Imaging Energies Photoelectric Effect Coherent Scattering Incoherent Scattering Pair and Triplet Production Refraction Small- and Ultra-small Angle Scattering Radiography How does it work? Imaging Parameters and Sources of X-ray contrast Drawbacks of Radiography Diffraction Enhanced Imaging (DEI) How does it work? Imaging Parameters and Sources of X-ray contrast Drawbacks of DEI Multiple Image Radiography (MIR-Planar Mode) How does it work? Sources of X-ray contrast MIR parameters and images MIR Model Based on Discrete Scatterers Multiple scattering series approach and MIR transport equation Solution of MIR transport equation Imaging Parameters Summary Photoelectric Effect Thompson (Classical) Scattering Thompson (Classical) Scattering Rayleigh Scattering (Coherent Scattering) Rayleigh Scattering (Coherent Scattering) Compton Scattering (Incoherent Scattering) Compton Scattering (Incoherent Scattering) Effects of Binding Energy in Compton (Incoherent) Scattering Effects of Binding Energy in Compton (Incoherent) Scattering Pair Production Pair Production in Nuclear Coulomb Force Field Pair Production in Nuclear Coulomb Force Field Pair Production in the Electric Field (Triplet Production) Radiography Setup Radiography Setup and Imaging Principles Drawbacks of Radiography DEI Setup and Imaging Principles Formation of DE Images Physics of DEI Calculation of DEI Images Comparison - Conventional and DEIACR - Phantom DEI image of ACR phantom - smallest calcifications Cancer in Breast Tissue Drawbacks of DEI Experimental Evidence of Problem