Fluoro Image Viewing Systems Exam
Questions And Answers
Vidicon -
correct answer ✅The television camera tube that is MOST often
used in television fluoroscopy. It converts the light image from the
output phosphor of the image intensifier into an electrical signal
that is sent to the television monitor, where it is reconstructed as
an image on the television screen.
(Plumbicon is the modified version)
Advantages of Television Monitoring (4) -
correct answer ✅1. Brightness level and contrast can be controlled
electronically.
2. Several observers can view the fluoroscopic image at the same
time.
3. Monitors can be placed remote to the examination room for
others to observe.
4. Allows for storage of the image in its electronic form for later
playback and image manipulation.
The 2 methods that are used to electronically convert the visible
image on the output phosphor of the image intensifier into an
electronic signal? -
correct answer ✅Thermionic television camera tube
, Fluoro Image Viewing Systems Exam
Questions And Answers
Solid state charge-coupled device (CCD).
What does the television camera consist of? -
correct answer ✅Cylindrical housing that contains the heart of the
television camera tube & electromagnetic coils that are used to
properly steer the electron beam inside the tube.
Function of the glass envelope -
correct answer ✅To maintain a vacuum and provide mechanical
support for the internal elements.
What are the internal elements? -
correct answer ✅Cathode & its electron gun
Assorted electrostatic grids
Target assembly that serves as an anode.
The Electron Gun -
correct answer ✅A heated filament that supplies a constant
electron current by thermionic emission. The electrons are formed
into an electron beam by the control grid, which also helps to
accelerate the electrons to the anode.
Questions And Answers
Vidicon -
correct answer ✅The television camera tube that is MOST often
used in television fluoroscopy. It converts the light image from the
output phosphor of the image intensifier into an electrical signal
that is sent to the television monitor, where it is reconstructed as
an image on the television screen.
(Plumbicon is the modified version)
Advantages of Television Monitoring (4) -
correct answer ✅1. Brightness level and contrast can be controlled
electronically.
2. Several observers can view the fluoroscopic image at the same
time.
3. Monitors can be placed remote to the examination room for
others to observe.
4. Allows for storage of the image in its electronic form for later
playback and image manipulation.
The 2 methods that are used to electronically convert the visible
image on the output phosphor of the image intensifier into an
electronic signal? -
correct answer ✅Thermionic television camera tube
, Fluoro Image Viewing Systems Exam
Questions And Answers
Solid state charge-coupled device (CCD).
What does the television camera consist of? -
correct answer ✅Cylindrical housing that contains the heart of the
television camera tube & electromagnetic coils that are used to
properly steer the electron beam inside the tube.
Function of the glass envelope -
correct answer ✅To maintain a vacuum and provide mechanical
support for the internal elements.
What are the internal elements? -
correct answer ✅Cathode & its electron gun
Assorted electrostatic grids
Target assembly that serves as an anode.
The Electron Gun -
correct answer ✅A heated filament that supplies a constant
electron current by thermionic emission. The electrons are formed
into an electron beam by the control grid, which also helps to
accelerate the electrons to the anode.
