Radiation Biology Quiz
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Questions and Answers

Which type of radiation disrupts the atomic structure of the absorber, causing chemical and biological changes?

  • Indirectly ionizing radiation
  • Gamma rays
  • X-rays
  • Directly ionizing radiation (correct)
  • What is the average amount of energy that a particular radiation imparts to the local medium per unit length called?

  • Linear energy transfer (LET) (correct)
  • Radiation interaction with matter
  • Compton process
  • Absorption of X-Rays
  • In diagnostic radiology, which two processes occur during X-ray photon absorption?

  • Photoelectric and absorption of X-Rays
  • Compton and absorption of X-Rays
  • Compton and photoelectric absorption processes (correct)
  • Compton and gamma ray absorption processes
  • Which process dominates at higher energies?

    <p>Compton process</p> Signup and view all the answers

    Which process is important at lower energies?

    <p>Photoelectric process</p> Signup and view all the answers

    Which process varies rapidly with atomic number (Z)?

    <p>Photoelectric process</p> Signup and view all the answers

    Which process interacts with atomic nuclei rather than electrons?

    <p>Spallation process</p> Signup and view all the answers

    Which type of radiation is directly ionizing?

    <p>Alpha particles</p> Signup and view all the answers

    What is the process by which X-ray photons interact with free electrons, transferring some of their energy as kinetic energy to the electron?

    <p>Compton process</p> Signup and view all the answers

    What is the dominant process at high energies during X-ray photon absorption?

    <p>Compton process</p> Signup and view all the answers

    Which process is dominant for radiations with high linear energy transfer (LET), like neutrons or α-particles?

    <p>Direct action</p> Signup and view all the answers

    Which type of radiation interacts with other atoms or molecules in cells, especially water, producing free radicals that can damage critical targets?

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

    What is the primary target for radiation in Radiation Biology?

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

    Which process interacts with a bound electron in the atom's shell, transferring all its energy to the electron?

    <p>Photoelectric absorption</p> Signup and view all the answers

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