Photoelectric Effect and X-Ray Tubes
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Questions and Answers

What is the main difference between the photoelectric effect and characteristic radiation in the x-ray tube?

  • The photoelectric effect does not involve the creation of characteristic radiation, while it does in the x-ray tube.
  • Characteristic radiation is produced in the body, while the photoelectric effect is produced in the x-ray tube.
  • The incoming energy in the photoelectric effect is an electron interacting with the tungsten anode, while in characteristic radiation it is an x-ray photon interacting with an atom in the body.
  • The incoming energy in the photoelectric effect is an x-ray photon interacting with an atom in the body, while in characteristic radiation it is an electron interacting with the tungsten anode. (correct)
  • What is a characteristic photon?

  • A photon that is emitted by a nucleus after a pair production.
  • A photon that is produced in the x-ray tube.
  • A photon that is emitted by an outer shell electron after a photoelectric interaction. (correct)
  • A photon that is emitted by an inner orbital electron after a Compton interaction.
  • Why are photoelectric interactions less prevalent in the diagnostic energy range?

  • Because the kVp level is too high in the diagnostic energy range.
  • Because the likelihood of a Compton interaction is higher in the diagnostic energy range. (correct)
  • Because the electron-binding energy of the atom in which the interaction occurs is too low in the diagnostic energy range.
  • Because the likelihood of a pair production is higher in the diagnostic energy range.
  • What is the primary difference between characteristic radiation and secondary radiation?

    <p>Characteristic radiation is produced when an electron interacts with the tungsten anode, while secondary radiation is produced when an x-ray photon interacts with an atom in the body</p> Signup and view all the answers

    What is the likelihood of a photoelectric interaction determined by?

    <p>The kVp level and the electron-binding energy of the atom in which the interaction occurs</p> Signup and view all the answers

    What happens to the incoming photon in a photoelectric interaction?

    <p>It is totally absorbed and creates an absorbed dose in the patient</p> Signup and view all the answers

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