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Construction of a Liquid Scintillation Detector for Relative Megavoltage Dosimetry

  • Author / Creator
    Sinn, David J
  • A radiation detector geared towards megavoltage external beam radiotherapy has been developed using a liquid scintillator and a charge coupled device (CCD). The liquid scintillator used is BetaMax ES (MP Biomedicals, Santa Ana, CA) and the CCD comes from an SPC880NC webcam (Royal Philips Electronics, Netherlands). Simulations and calculations show this scintillator has excellent radiological water equivalence. The detector was also used to measure the relative dose factors, tissue maximum ratios, physical wedge factors, enhanced dynamic wedge factors and modulation factors for a patientint intensity modulated radiotherapy (IMRT) plan. Tests show that the measured values obtained agree well with a Protea ion chamber.

  • Subjects / Keywords
  • Graduation date
    2012-09
  • Type of Item
    Thesis
  • Degree
    Master of Science
  • DOI
    https://doi.org/10.7939/R37H06
  • License
    This thesis is made available by the University of Alberta Libraries with permission of the copyright owner solely for non-commercial purposes. This thesis, or any portion thereof, may not otherwise be copied or reproduced without the written consent of the copyright owner, except to the extent permitted by Canadian copyright law.
  • Language
    English
  • Institution
    University of Alberta
  • Degree level
    Master's
  • Department
    • Department of Oncology
  • Specialization
    • Medical Physics
  • Supervisor / co-supervisor and their department(s)
    • Mackenzie, Marc (Medical Physics)
  • Examining committee members and their departments
    • Morsink, Sharon (Physics)
    • Fallone, Gino (Medical Physics)
    • Rathee, Satyapal (Medical Physics)