ASRT Module 3- Study Guide
In CRT display technology, an electron gun fires electrons at a ________ - answer
fluorescent screen
An advantage of LCD monitors over CRT monitors is that LCD monitors: - answer have
less screen glare
An LCD monitor's resolution is determined by: - answer pixel pitch
Most LCD monitors have an aspect ratio of: - answer16:9
________ ________ increases as the matrix size of a display monitor increases. -
answer spatial resolution
pixel pitch - answer how close pixels are to each other
to accurately display the gray scale in a radiograph, the display monitor must be able to
demonstrate at least how many shades of gray? - answer256 shades of gray
The difference between the maximum a minimum luminance of a display system is
called _____________ - answer contrast resolution
Current ACR standards specify that gray-scale monitors used for interpreting
radiographs provide a minimum of how many cd/m2? - answer171
How many images per second does it take CRT monitors to refresh - answer60-120
The delayed light emission that occurs in a CRT monitor after the screen refreshes is
called? - answerpersistence
The brightness of a display monitor is referred to as? - answerluminance
Work list information may be provided to the technologists workstation by the ______
and/or _______ - answerHIS; RIS
Modifying demographic information and image data on a workstation also alters the
permanent ________ ________ - answerpatient record
If an image is acquired with the orientation of the image receptor upside down the
______ modality workstation tool can be used to orient the image the correct way -
answerrotate
In CRT display technology, an electron gun fires electrons at a ________ - answer
fluorescent screen
An advantage of LCD monitors over CRT monitors is that LCD monitors: - answer have
less screen glare
An LCD monitor's resolution is determined by: - answer pixel pitch
Most LCD monitors have an aspect ratio of: - answer16:9
________ ________ increases as the matrix size of a display monitor increases. -
answer spatial resolution
pixel pitch - answer how close pixels are to each other
to accurately display the gray scale in a radiograph, the display monitor must be able to
demonstrate at least how many shades of gray? - answer256 shades of gray
The difference between the maximum a minimum luminance of a display system is
called _____________ - answer contrast resolution
Current ACR standards specify that gray-scale monitors used for interpreting
radiographs provide a minimum of how many cd/m2? - answer171
How many images per second does it take CRT monitors to refresh - answer60-120
The delayed light emission that occurs in a CRT monitor after the screen refreshes is
called? - answerpersistence
The brightness of a display monitor is referred to as? - answerluminance
Work list information may be provided to the technologists workstation by the ______
and/or _______ - answerHIS; RIS
Modifying demographic information and image data on a workstation also alters the
permanent ________ ________ - answerpatient record
If an image is acquired with the orientation of the image receptor upside down the
______ modality workstation tool can be used to orient the image the correct way -
answerrotate
