Fluoroscopy Latest Questions with 100% Correct
Answers
diameter of its input phosphor
An image intensifier tube is identified by the...
directly proportional
X-ray photons hitting the input phosphor is _____________ _______________ to number of
light photons produced.
5 minutes
The cumulative timer should allow for ____________ of fluoroscopy "on" time.
Pulsed
The radiation should be ____________ vs. constantly streaming, and protective drapes/bucky
slot cover should be used at all times.
a "dead man's switch" must be used and the "last image hold" feature must be activated
on the imaging screen.
To minimize unintentional or excessive dose, what should be done?
Title 21 of the Code of Federal Regulations Part 1020 (21 CFR 1020)
Federal guidelines for fluoroscopy equipment may be found in......
The medical physicist
Who has the primary role for performance testing and interpretation?
,Low/High
Fluorscopy uses __________ mA settings, while spot filming/radiographs use __________
settings.
<5 mA
What is the mA setting for Fluoro?
100+ mA
What is the mA setting for spot filming/radiographs?
Conventional fluoroscopy
Uses a TV camera tube or CCD
Flat panel detectors
Being introduced with digital fluoro systems.
Mirror optics system
The original image intensifiers produced an image that was viewed using what?
(like looking at the output phosphor with a rearview mirror)
Televison Monitor
Conventionally, the viewing system is now a __________.
it must first be converted to an electrical signal
In order to view the image from the output phosphor on a television monitor, what must happen?
the camera tube and the charge-coupled device (CCD)
, What two devices are used today to convert the signal into an electrical signal?
Vidicon Tube
(Sometimes Plumbicon)
What is the camera tube most often used?
Vidicon Tube
diode tube contained in a glass envelope to maintain a vacuum
Either a fiberoptic bundle or an optical lens system.
The vidicon tube is connected to the output phosphor of the image intensifier by what?
electron gun and a control grid
Cathode of tube consists of......
Electron gun
What provides a continuous stream of electrons at the cathode of the camera tube?
Control grid
What forms the electron stream into a beam at the cathode?
Face Plate
Signal Plate
Target Layer
Anode of tube consists of...
Face Plate
Answers
diameter of its input phosphor
An image intensifier tube is identified by the...
directly proportional
X-ray photons hitting the input phosphor is _____________ _______________ to number of
light photons produced.
5 minutes
The cumulative timer should allow for ____________ of fluoroscopy "on" time.
Pulsed
The radiation should be ____________ vs. constantly streaming, and protective drapes/bucky
slot cover should be used at all times.
a "dead man's switch" must be used and the "last image hold" feature must be activated
on the imaging screen.
To minimize unintentional or excessive dose, what should be done?
Title 21 of the Code of Federal Regulations Part 1020 (21 CFR 1020)
Federal guidelines for fluoroscopy equipment may be found in......
The medical physicist
Who has the primary role for performance testing and interpretation?
,Low/High
Fluorscopy uses __________ mA settings, while spot filming/radiographs use __________
settings.
<5 mA
What is the mA setting for Fluoro?
100+ mA
What is the mA setting for spot filming/radiographs?
Conventional fluoroscopy
Uses a TV camera tube or CCD
Flat panel detectors
Being introduced with digital fluoro systems.
Mirror optics system
The original image intensifiers produced an image that was viewed using what?
(like looking at the output phosphor with a rearview mirror)
Televison Monitor
Conventionally, the viewing system is now a __________.
it must first be converted to an electrical signal
In order to view the image from the output phosphor on a television monitor, what must happen?
the camera tube and the charge-coupled device (CCD)
, What two devices are used today to convert the signal into an electrical signal?
Vidicon Tube
(Sometimes Plumbicon)
What is the camera tube most often used?
Vidicon Tube
diode tube contained in a glass envelope to maintain a vacuum
Either a fiberoptic bundle or an optical lens system.
The vidicon tube is connected to the output phosphor of the image intensifier by what?
electron gun and a control grid
Cathode of tube consists of......
Electron gun
What provides a continuous stream of electrons at the cathode of the camera tube?
Control grid
What forms the electron stream into a beam at the cathode?
Face Plate
Signal Plate
Target Layer
Anode of tube consists of...
Face Plate
