Fundamental study of dichromography by using monochromatic X-ray from synchrotron radiation -Spatial and density resolution-

概要

論文の詳細を見る
Synchrotron Radiation (SR) is electromagnetic radiation that has enoumous intensity and applicable energy by using wiggler magnet for radiology. One of useful applications of SR is a technique of digital energy subtraction by using two monochromatic X-rays which have energies slightly above and below the energy of K-absorption edge of an X-ray contrast medium. It is so called K-edge dichromography. The paper presents some basic results obtained at the photon factory in national laboratory for high energy physics (KEK), Japan. (1) Spatial resolution: superior resolution than conventional X-ray even with a distance of 50cm between a test chart and a detector (non-screen type X-ray film), and different resolution for the longitudinal and horizontal, the former is better. (2) Density resolution: clearly resolved 1.4mg/cm<SUP>2</SUP> in iodine wedge phantom by taking dichromography.
Medical Imaging and Information Sciencesの論文