ASRT Module 1 - Fundamentals
The beam that contains useful or diagnostic information is known as the ____________
beam - answer remnant
In analog imaging, the intensifying screen converts x-rays into _________
____________ - answer light photons
Digital imaging systems have a large dynamic range which means they can respond to
a wide range of - answer exposure values to create diagnostic images
In an analog-to-digital cpnverter, the analog input consists of - answer electrons
_____ and ______ symbols compose the binary language. - answer1,0
An 8-bit image display shows ______ shades of gray. - answer256
As the pixel size decreases, the recorded detail (spatial resolution) ___________. -
answer increases
Scintillation refers to the material's ability to give off ________ - answer light
The acronym PSP stamds for Photostimulable __________ - answerplate? phosphor?
During processing, image data is released from a PSP receptor after the receptor is
struck by a ______ _______ ________ - answerred laser beam
Direct image formation converts x-rays into _________ - answerelectrons
Individual components of a digital image are collected in areas of a thin-film transistor
known as ________ - answerDELs
Random information within a diagnostic image that detracts from the overall image
appearence is known as _______ - answernoise
CCD's are suitable for low-dose imaging because they respond to _______ _______
_______ - answerlow light levels
DQE is a measure of image _________ - answerquality
Selecting a lower sampling frequency during image processing resultss in ________
pixel size and _________ spatial resolution - answerlarger; lower
The beam that contains useful or diagnostic information is known as the ____________
beam - answer remnant
In analog imaging, the intensifying screen converts x-rays into _________
____________ - answer light photons
Digital imaging systems have a large dynamic range which means they can respond to
a wide range of - answer exposure values to create diagnostic images
In an analog-to-digital cpnverter, the analog input consists of - answer electrons
_____ and ______ symbols compose the binary language. - answer1,0
An 8-bit image display shows ______ shades of gray. - answer256
As the pixel size decreases, the recorded detail (spatial resolution) ___________. -
answer increases
Scintillation refers to the material's ability to give off ________ - answer light
The acronym PSP stamds for Photostimulable __________ - answerplate? phosphor?
During processing, image data is released from a PSP receptor after the receptor is
struck by a ______ _______ ________ - answerred laser beam
Direct image formation converts x-rays into _________ - answerelectrons
Individual components of a digital image are collected in areas of a thin-film transistor
known as ________ - answerDELs
Random information within a diagnostic image that detracts from the overall image
appearence is known as _______ - answernoise
CCD's are suitable for low-dose imaging because they respond to _______ _______
_______ - answerlow light levels
DQE is a measure of image _________ - answerquality
Selecting a lower sampling frequency during image processing resultss in ________
pixel size and _________ spatial resolution - answerlarger; lower
