Flat-Panel X-Ray Detectors
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Questions and Answers

Which material is typically used as a radiation-conversion material in flat-panel detectors for radiography?

  • Silicon
  • Aluminum
  • a-Se (correct)
  • Carbon fiber

    • What is the purpose of the photodiode in each pixel of a TFT array in a flat-panel detector?

  • To convert X-rays to electrical charges
  • To absorb electrons and generate electrical charges (correct)
  • To store electrons
  • To isolate each pixel element

    • What is the function of the field effect transistor (FET) in a flat-panel detector?

  • To store electrical charges
  • To isolate each pixel element (correct)
  • To perform the readout and amplification
  • To convert X-rays to electrons

    • What is the purpose of the specialized silicon integrated circuits connected along the edges of the detector matrix in a flat-panel detector?

    <p>To control the line scanning sequence</p> Signup and view all the answers

    How many pixels can be read and converted to a composite digital image in less than 1 second in a flat-panel detector?

    <p>Around 1 million</p> Signup and view all the answers

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