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Radiographic Procedures I: Equipment Terms
Equipment Terms
15
Health Care
Undergraduate 3
08/22/2014

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Term
Cassette tray (Bucky)
Definition
tray that holds and centers cassette
Term
Grid
Definition
devise consisting of thin lead strips that permits primary radiation and reduces scatter
Term
Upright Image Receptor
Definition
upright or wall unit that receives image
Term
Cassette (Film or Digital)
Definition
hold film or image plate, has intensifying screens
Term
Intensifying Screen
Definition
layer of luminescent crystals in cassette
Term
Imaging Plate
Definition
in cassette, read by laser in digital processor
Term
Overhead tube
Definition
tube that is mounted overhead and permits it to be moved in several directions
Term
Collimator
Definition
restricts the x-ray beam
Term
Central Ray
Definition
center of the beam
Term
Control Panel
Definition
controls for exposure settings
Term
Technique
Definition
combination of the settings that make up the exposure
Term
Exposure Factors
Definition
mA, sec, kVp
Term
mAs
Definition
milliamps multiplied by time (seconds)
= mAS
= mA • s = mAs
Term
kVp
Definition
kilovolotage peak, controls strength
Term
S#/Exposure Index/Sensitivity number
Definition
measurement of the density on a digital image. Each exam has an optimum rage.
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