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exam 1 review

QuestionAnswer
In digital radiography, spatial resolution is improved with increased _____________. matrix size
Scanned projection radiography was developed as a complement to ______________. computed tomography
Spatial resolution is determined by the ratio of ________________ to ____________. field of view; matrix size
Conventional x-ray tubes and image receptors are used with ________ radiography systems. computed
Which of the following are capture elements used in DR? Gadolinium oxysulfide
What takes place during the stimulate step in the production of a PSL signal? The latent image is stimulated from the interactions of an infrared laser beam with the PSP.
Which of the following are considered a source of image noise in computed radiography? Inadequate sampling
The ________ is an example of computer input software. computer programs
The output signal from the photostimulable phosphor plate is converted from analog to digital by the ________________. computer controls
A photostimulable phosphor in a metastable state will emit light ________________. immediately, when stimulated by light, and over time
Following the laser stimulation of the photostimulable phosphor, the excited electrons are _________________. mosty stablizied
With computed radiography the contrast is _______________________________. constant regardless of radiation exposure
The principal source of noise in computed radiography is ____________________. scatter radiation
The photostimulable phosphor screen is handled in a ______________. reader
Which of the following is the most common cause of tube failure? vaporized tungsten
The high voltage generator contains the high voltage transformer, the __________, and the ___________. timer; rectifiers
The _________ circuit provides electrons for the x-ray tube current. filament
Created by: bighunt
 

 



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