02074    a2200241   4500020001800000050002100018100003100039245007100070250001800141264003100159300004900190336002600239337002800265338002800293504005100321505054900372520080200921650002401723650002601747650001301773650001701786700002901803  a9780323566681  aRC78.7bJOH 2020  aJohnston, James J.eauthor  aEssentials of radiographic physics and imaging/cJames N. Johnston  aThird edition  aMissouri:bElsevier;c2020  axi, 292pages:bcolor illustrations, portrait  2rdacontentatextbtxt  2rdamediaaunmediatedbn  2rdacarriersavolumebnc  aIncludes bibliographical references and index.  aI: Principles of radiation physics -- Structure of the atom -- Electromagnetic and particulate radiation -- The X-Ray circuit -- The X-Ray tube -- X-Ray production -- X-Ray interactions with matter -- II: Image production and evaluation -- Image production -- Image quality and characteristics -- Digital image receptors -- Radiographic exposure technique -- Scatter control -- Exposure technique selection -- Film-screen imaging -- III: Specialized radiographic equipment -- Fluoroscopic imaging -- Additional equipment -- Computed tomography.  aEssentials of Radiographic Physics and Imaging, 3rd Edition follows the ASRT recommended curriculum and focuses on what the radiographer needs to understand to safely and competently perform radiographic examinations. This comprehensive text gives you a foundational understanding of basic physics principles such as atom structure, electricity and magnetism, and electromagnetic radiation. It then covers imaging principles, radiation production and characteristics, digital image quality, imaging equipment, digital image acquisition and display, image analysis, and more- linking physics to the daily practice of radiographers. New for the third edition is updated information on radiation classifications, a shift in focus to SI units, and a thoroughly updated chapter on Fluoroscopic Imaging.  aDiagnostic imaging.  aRadiography, Medical.  aPhysics.  aRadiography.  aFauber, Terri L.eauthor