Radiation Shielding Thickness and Brachytherapy Quiz
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Questions and Answers

What is the purpose of a compensating filter in radiation therapy?

  • To increase the skin dose
  • To improve the depth dose distribution
  • To decrease the tumor dose
  • To reduce the skin dose (correct)
  • Which type of radiation therapy unit uses Cobalt-60 as a radioactive source?

  • Megavoltage X-ray Generators
  • Van de Graaf Generator
  • Microtron
  • Cobalt-60 Therapy Unit (correct)
  • In which type of brachytherapy is the radioactive source placed directly within or near the tumor site?

  • Deep Therapy
  • Field Shaping
  • Interstitial Brachytherapy (correct)
  • Telecurie Therapy
  • What is the main advantage of brachytherapy compared to external beam radiation therapy?

    <p>Reduced treatment time</p> Signup and view all the answers

    Which radioactive source is commonly used for treating head and neck therapy in Telecurie Therapy Units?

    <p>Cesium-137</p> Signup and view all the answers

    What is the typical depth range of tumors that are effectively treated using Deep Therapy with Orthovoltage Medium energy?

    <p>~ 2 cm</p> Signup and view all the answers

    What is the primary function of a field shaping device in radiation therapy?

    <p>To shape the radiation beam to match the tumor shape</p> Signup and view all the answers

    What is a characteristic disadvantage of using orthovoltage medium energy tubes in radiation therapy?

    <p>Large skin dose</p> Signup and view all the answers

    What is a common advantage of using Cobalt-60 Therapy Units over other radiation sources?

    <p>Emission of specific gamma ray photons</p> Signup and view all the answers

    Which type of accelerator is commonly used for heavy charged particle therapy?

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

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