Direct Radiography (DR) Technology Quiz
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Direct Radiography (DR) Technology Quiz

Created by
@StraightforwardMoose

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Questions and Answers

What is the main advantage of DR over CR and film?

  • Less efficient use of time and space
  • Higher spatial resolution
  • Better contrast resolution (correct)
  • Lower dose efficiency

    • Which element of digital image formation captures the x-rays?

  • Coupling element
  • Capture element (correct)
  • Processing element
  • Collection element

    • Which type of DR imaging system uses Amorphous Selenium for direct conversion?

  • Cesium Iodide (CsI)/Amorphous Selenium (a-S)
  • Amorphous Selenium (a-Se) (correct)
  • Cesium Iodide (CsI)/Amorphous Silicon (a-S)
  • Cesium Iodide (CsI)/Charge Couple Device (CCD)

    • What is the principle of operation of CR (Computed Radiography)?

    <p>Indirect conversion</p> Signup and view all the answers

    Which type of DR imaging system uses Cesium Iodide and Charge Couple Device for indirect conversion?

    <p>Cesium Iodide (CsI)/Charge Couple Device (CCD)</p> Signup and view all the answers

    Digital Radiography has better contrast resolution than film and CR?

    <p>True</p> Signup and view all the answers

    DR has lower Detective Quantum Efficiency (DQE) compared to CR and film?

    <p>False</p> Signup and view all the answers

    DR is less efficient in the use of time, space, and personnel compared to film and CR?

    <p>False</p> Signup and view all the answers

    The Capture Element of Cesium Iodide/Amorphous Silicon DR system involves transferring the x-ray–generated signal to the collection element?

    <p>False</p> Signup and view all the answers

    Amorphous Selenium is used in Direct Conversion DR imaging systems?

    <p>True</p> Signup and view all the answers

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