CT Registry Review Systems/Physics

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| By Nbroussard33
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Nbroussard33
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  • 1/5 Questions

    Continuous rotation scanners made___________imaging possible.

    • Axial
    • Conventional
    • Quantity
    • Helical
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About This Quiz

This CT Registry Review quiz covers key concepts in CT systems and physics, focusing on scanner technology, electron flow control, data processing, and detector types.

CT Registry Review Systems/Physics - Quiz

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  • 2. 

    Most CT scanners today use____________ detectors in which the x-ray photon causes the detector to generate a flash of light.

    • Solid state

    • Xenon gas

    • Metal coated

    • Mirrow filled

    Correct Answer
    A. Solid state
    Explanation
    Most CT scanners today use solid-state detectors in which the x-ray photon causes the detector to generate a flash of light. Solid-state detectors are made of semiconductor materials such as silicon or germanium, which can convert x-ray photons into electrical signals. These detectors offer high sensitivity, fast response time, and excellent image quality, making them ideal for use in CT scanners. Additionally, solid-state detectors are more durable and stable compared to other types of detectors, ensuring reliable and accurate imaging results.

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  • 3. 

    __________ controls the number of electrons that flow from cathode to anode and can be altered by the operator.

    • Collimation

    • Brems

    • Kvp

    • MA

    Correct Answer
    A. MA
    Explanation
    The correct answer is mA, which stands for milliamperes. Milliamperes control the number of electrons that flow from the cathode to the anode in a circuit. The operator can alter the milliamperes to adjust the flow of electrons and control the intensity of the current.

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  • 4. 

    Attenuation data must be converted into ___________ format for the array processor.

    • Detector

    • Digital

    • Analog

    • Photon

    Correct Answer
    A. Digital
    Explanation
    Attenuation data must be converted into digital format for the array processor because digital format is the most suitable and efficient format for processing and analyzing data using an array processor. Digital data can be easily manipulated, stored, and transmitted, making it easier to perform complex calculations and operations on the attenuation data. Additionally, digital data provides higher precision and accuracy compared to analog or photon formats, ensuring reliable and accurate results from the array processor.

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  • 5. 

    The detectors measure attenuation data from various projections and is contained in the__________.

    • Raw data

    • Processed data

    • Attenuated data file

    • Image data

    Correct Answer
    A. Raw data
    Explanation
    The detectors measure attenuation data from various projections and this data is contained in the raw data.

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  • Current Version
  • Jun 11, 2024
    Quiz Edited by
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  • Sep 13, 2009
    Quiz Created by
    Nbroussard33
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