THEORY GUIDE Glossary
10DEC05
TG4825-1
Page
115 of 120
Section 12: Glossary
Term Description
A/D Analog-to-digital.
Amplitude Position of the GALVO when the laser beam has reached the end of
the trace across the PHOSPHOR PLATE in the fast scan direction,
determined by the size of the PLATE.
Artifact Any irregularity on the radiograph caused by lint, dust, electrostatic
discharge, processing, or storing or handling that is not correct.
Aspect ratio Measurement of an object in the fast scan and slow scan directions.
For example, if a square object were exposed and the image
processed, the processed image should remain square, not
rectangular in shape.
Backscatter Radiation that is scattered backward in the path of the original beam.
Kodak DirectView CR CASSETTES have a backscatter-control layer to
decrease backscatter.
BAR CODE A series of vertical BARS on a label that provide information that can
be read by a computer. The BAR CODE LABEL on a CASSETTE for
the CR 825/850 SYSTEM uses a 10-digit code to identify the size,
type, and serial number of the CASSETTE.
BAR CODE
READER
Device for reading BAR CODE LABELS.
Cluster A collection of CR 800/825/850/900/950 SYSTEMS and the Kodak
DirectView REMOTE OPERATIONS PANEL (ROP) that can exchange
patient exam and image information on a network.
CR Computed Radiography.
DICOM Digital Imaging and Communication in Medicine. Standard for
transferring medical images on a network.
DIS DICOM Information System. An information system or front end to an
information system that can operate with DICOM HIS/RIS services.
DMA Direct Memory Access.