Pseudo Trial Paper 1
  1. Proton beams can be modulated by a "propellor" device. Describe the physical processes that result in beam modulation by this device.
  2. Photon beams can be modulated by a metallic device. Describe the physical processes that result in beam modulation by this device.
  3. Discuss the physical principles behind the use of bolus bags in orthovoltage radiotherapy.
  4. Describe the differences between a kV and MV chest radiograph. Discuss how these differences arise.
  5. Discuss the therapeutic potential of the neutrino.
  6. Describe the failsafe devices attached to a linear accelerator.

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