ARTIFACTS DISTORTION CONCEPT of NOISE DETAIL and BLUR EFFECTS of NOISE EFFECTS of BLUR SOURCES of NOISE SOURCES of BLUR CONTROLLING NOISE FOCAL SPOT RECEPTOR EXPOSURE RECEPTOR PROCESSING DIGITAL PIXEL SIZE DIGITAL PIXEL SIZE OPTIMIZATION PATIENT DOSE PHYSICAL CONTRAST EFFECTS of SPECTRUM IMAGE CONTRAST RELATION to NOISE CONTRAST SENSITIVITY CONCEPT   CLINICAL REQUIREMENTS BETA TEST VERSION SPECTRUM ALL LINKS NOT ACTIVE SCATTER   RECEPTOR   PROCESING   VIEWING