PACS FINAL EXAM Verified Questions And Answers |
Guaranteed Success
_____ refers to how each component of a system contributes
to the overall efficiency of the entire system. - ✔✔MTF
A ______ laser is used to energize trapped electrons, which
then emit ______ light. - ✔✔Red, blue
A CMOS is not a semiconductor. T/F - ✔✔False
A graphical representation of a digital image is called a -
✔✔histogram
A scintillator converts x-rays into _________ - ✔✔Light
A series of connections, controllers, and chips that creates the
information highway of the computer. - ✔✔The bus
Aliasing occurs when the sampling frequency is not greater
than twice the frequency of the input signal - ✔✔True
,Aliasing occurs when? - ✔✔not enough sampling has taken
place
AMFPI detector measures the response of pixels on a 2D
array, which are fastened to a thing glass backing, or
substrate. T/F - ✔✔True
AMFPI stand for? - ✔✔Active Matrix Flat Panel Imager
Any imaging plate can be used with any plate reader. T/F -
✔✔False
As SNR increases: - ✔✔noise decreases and patient exposure
increases.
Assignment of a numerical value to each light photon is
called? - ✔✔Digitizing
Assigns meaning to data. - ✔✔Information
, Bigger pixels mean better spatial resolution? True or False? -
✔✔False
Brightness of an image can be adjusted by the window
leveling. True or False? - ✔✔True
Compared to film/screen imaging, digital systems have: -
✔✔All of the above. A linear response curve, wider latitude,
greater dynamic range.
Compared to low-pass filtering, high pass filtering averages
________. - ✔✔fewer pixels in the neighborhood
Digital right and left markers should be used to indicate the
anatomical side imaged. T/F? - ✔✔False
Digital systems are less sensitive to scatter radiation than
film/screen systems. - ✔✔False
DVD stands for? - ✔✔Digital versatile disk
Guaranteed Success
_____ refers to how each component of a system contributes
to the overall efficiency of the entire system. - ✔✔MTF
A ______ laser is used to energize trapped electrons, which
then emit ______ light. - ✔✔Red, blue
A CMOS is not a semiconductor. T/F - ✔✔False
A graphical representation of a digital image is called a -
✔✔histogram
A scintillator converts x-rays into _________ - ✔✔Light
A series of connections, controllers, and chips that creates the
information highway of the computer. - ✔✔The bus
Aliasing occurs when the sampling frequency is not greater
than twice the frequency of the input signal - ✔✔True
,Aliasing occurs when? - ✔✔not enough sampling has taken
place
AMFPI detector measures the response of pixels on a 2D
array, which are fastened to a thing glass backing, or
substrate. T/F - ✔✔True
AMFPI stand for? - ✔✔Active Matrix Flat Panel Imager
Any imaging plate can be used with any plate reader. T/F -
✔✔False
As SNR increases: - ✔✔noise decreases and patient exposure
increases.
Assignment of a numerical value to each light photon is
called? - ✔✔Digitizing
Assigns meaning to data. - ✔✔Information
, Bigger pixels mean better spatial resolution? True or False? -
✔✔False
Brightness of an image can be adjusted by the window
leveling. True or False? - ✔✔True
Compared to film/screen imaging, digital systems have: -
✔✔All of the above. A linear response curve, wider latitude,
greater dynamic range.
Compared to low-pass filtering, high pass filtering averages
________. - ✔✔fewer pixels in the neighborhood
Digital right and left markers should be used to indicate the
anatomical side imaged. T/F? - ✔✔False
Digital systems are less sensitive to scatter radiation than
film/screen systems. - ✔✔False
DVD stands for? - ✔✔Digital versatile disk
