Digital imaging characteristics Exam
2025 Questions and Answers 100%
Pass
How is the resolution of a digital image determined? - ✔✔By individual size of each
pixel
Which is the term for the picture elements in a digital image? - ✔✔Pixel
What are the units of spatial resolution? - ✔✔lp/mm
What radiology descriptor relates to the efficiency of the detector to convert X-ray
energy into a Radiographic image? - ✔✔Detective quantum efficiency
Which most accurately refers to the individual hardware elements of a digital
radiography image receptor plate that detect radiation? - ✔✔DEL
(Detector element)- the individual hardware components of a flat panel digital image
receptor
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, In a digital image receptor (IR), which electronic devices directly account for the plates
ability to hold onto a charge until it is sent to the computer? - ✔✔Capacitors
-function to store the charge produced within a digital IR by radiation exposure until
the data is sent to the computer
Which measures the percentage of X-rays absorbed when they hit the detector? -
✔✔DQE
Detective quantum efficiency
Dynamic range is associated with which digital imaging term? - ✔✔contrast
-# of gray shades an imaging system can produce
What is true regarding digital radiography (DR) versus screen-film radiology? - ✔✔DR
is faster to process
DR is easier to view from multiple locations
Which describes the effect of decreasing pixel pitch? - ✔✔increased spatial resolution
Pixel pitch and spatial resolution have an inverse relationship.
Which describes quantum noise? - ✔✔An image effect of too little exposure on a digital
image receptor
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2025 Questions and Answers 100%
Pass
How is the resolution of a digital image determined? - ✔✔By individual size of each
pixel
Which is the term for the picture elements in a digital image? - ✔✔Pixel
What are the units of spatial resolution? - ✔✔lp/mm
What radiology descriptor relates to the efficiency of the detector to convert X-ray
energy into a Radiographic image? - ✔✔Detective quantum efficiency
Which most accurately refers to the individual hardware elements of a digital
radiography image receptor plate that detect radiation? - ✔✔DEL
(Detector element)- the individual hardware components of a flat panel digital image
receptor
100% Pass Guarantee Katelyn Whitman, All Rights Reserved © 2025 1
, In a digital image receptor (IR), which electronic devices directly account for the plates
ability to hold onto a charge until it is sent to the computer? - ✔✔Capacitors
-function to store the charge produced within a digital IR by radiation exposure until
the data is sent to the computer
Which measures the percentage of X-rays absorbed when they hit the detector? -
✔✔DQE
Detective quantum efficiency
Dynamic range is associated with which digital imaging term? - ✔✔contrast
-# of gray shades an imaging system can produce
What is true regarding digital radiography (DR) versus screen-film radiology? - ✔✔DR
is faster to process
DR is easier to view from multiple locations
Which describes the effect of decreasing pixel pitch? - ✔✔increased spatial resolution
Pixel pitch and spatial resolution have an inverse relationship.
Which describes quantum noise? - ✔✔An image effect of too little exposure on a digital
image receptor
100% Pass Guarantee Katelyn Whitman, All Rights Reserved © 2025 2
