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This Concept Map, created with IHMC CmapTools, has information related to: Farzeen's c-map on aquisition precaution, Dynamic range exposure Influences Digital image acquisition systems, Acquisition Issues Consists of Automatic rescaling, Reader caliberation & set up Involves Determination of accuracy of exposure index, Rescaling error Image may appear Dark, Automatic rescaling Controls Density/Brightness, Done with the use of grid may cause Grid cut-off, Done with the use of grid Determined by Part thickness, Collimation Helps in Scatter control, Locating exposure field Consists of Including data in histogram, Alignment of exposure field & receptor If not followed Inappropriate beam configuration, Part thickness If More than 12 cm for other structure, Installing identical processing codes on all readers Avoids Post process, Acquisition Issues Consists of Centering/Positioning, More critical with CR than film/screen Can be Done with the use of grid, Very large dynamic range That produces Images from an exposure of 100 microR to 100 mR, More sensitivity to scatter than film screen Leads to Reduce contrast due to fog, Digital image acquisition systems Provides Very large dynamic range, Cassette-based system more than cassette-less Because Grid not built in to cassette, Low intensity radiation response Produces Very large dynamic range, Density/Brightness Uses Grayscale redention