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Physics Fluoroscopy Test Questions and Answers All Correct

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Physics Fluoroscopy Test Questions and Answers All Correct What is the greatest disadvantage of the use of a Plumbicon tube (vs a Vidicon) - Answer- Increased Quantum Mottle Which is the component of the tv monitor where the video signal is transformed into an image? - Answer- Phosphor Scree...

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  • October 1, 2024
  • 5
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • physics fluoroscopy
  • physics fluoroscopy test
  • physics fluoroscopy test questions and answers

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  • Physics Fluoroscopy
  • Physics Fluoroscopy

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Physics Fluoroscopy Test
Questions and Answers All
Correct
What is the greatest disadvantage of the use of a Plumbicon tube (vs a Vidicon) -
Answer- Increased Quantum Mottle

Which is the component of the tv monitor where the video signal is transformed into an
image? - Answer- Phosphor Screen

State the range of fluoroscopic mA - Answer- 0.5-5.0mA

What year was Fluoroscopy invented? - Answer- 1896

The shape of the input screen helps to control ____________ - Answer- Distortion

The II and the TV/Video Camera tube are joined by what 2 devices? - Answer- Fiber
Optics and Lens System

The image intensifier was invented in what year? - Answer- 1948

If one electron produces 80 light photons within an image intensifier, what would be the
flux gain? - Answer- 80

Which of the following is the component of the television monitor where the video signal
is transformed into an image? - Answer- Phosphor Screen

The input screen absorbs _________ and emits _________. - Answer- X-Ray Photons,
Light Photons

Total Brightness Gain is determined by _______ and ________ - Answer- minification
gain, flux gain

What is the electron beam of the television camera tube? - Answer- Pencil Beam

What is the greatest disadvantage of the use of a plumbicon tube (vs a vidicon) -
Answer- Increased quantum mottle

, What is the greatest disadvantage of the mirror-optics viewing system? - Answer- Only
one viewer at a time

Which of the following is the most important component in a television monitor? -
Answer- The cathode ray tube

Fluoroscopy is commonly used for observation of ___________ - Answer- The GI Tract

The standard size of a cassette for spot filming is _________. - Answer- 9" x 9"

The primary ______ occurs from the acceleration and focusing of the electron beam -
Answer- Brightness Gain

The photocathode absorbs _______ and emits _________ - Answer- Light Photons,
Electrons

Total Brightness Gain is _________ - Answer- A measure of the increase in image
intensity

The photocathode is composed of ________ metals - Answer- Photoemissive

Applies to the output phosphor of the image intensifier - Answer- Light is Emitted

During fluoroscopic image intensification, the primary x-ray beam exits the patient and
strikes the ______ of the image intensifier - Answer- Input Screen

An image that displays vignetting will: - Answer- be dim around the periphery

Electrostatic lenses are actually ________ - Answer- charged electrodes

The output screen absorbs _____ and emits ______. - Answer- Electrons, Light
Photons

What is the main difference between the Plumbicon tube and the Vidicon tube? -
Answer- The plumbicon uses a different material for the target plate

Fluoroscopy is a ______ radiographic examination - Answer- Dynamic

The correct sequence of conversions that take place in the image intensifier? - Answer-
X-Ray; Light; Electrons; Light

Electrostatic lenses are used to accelerate and focus _______. - Answer- Electrons

The ability of the image intensifier to increase image illumination is called? - Answer-
Brightness Gain

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