Investigation of linear accelerator pulse delivery using fast organic scintillator measurements

Anders Ravnsborg Beierholm, Claus Erik Andersen, Lars René Lindvold, Marianne Aznar

    Research output: Contribution to journalConference articleResearchpeer-review

    Abstract

    Fiber-coupled organic plastic scintillators present an attractive method for time-resolved dose measurements during radiotherapy. Most organic scintillators exhibit a fast response, making it possible to use them to measure individual high-energy X-ray pulses from a medical linear accelerator. This can be used in complex treatment procedures such as gated intensity-modulated radiotherapy (IMRT)1, where the advantage of dose rate measurements of high temporal resolution is highly emphasized. We report on development of a fast data acquisition scintillator-based system as well as measurements performed on Varian medical linear accelerators, delivering 6 MV X-ray beams. The dose delivery per radiation pulse was found to agree with expectations within roughly 1%, although minor discrepancies and transients were evident in the measurements.
    Original languageEnglish
    JournalRadiation Measurements
    Volume45
    Issue number3-6
    Pages (from-to)668-670
    ISSN1350-4487
    DOIs
    Publication statusPublished - 2010
    Event7th European Conference on Luminescent Detectors and Transformers of Ionizing Radiation - Kraków, Poland
    Duration: 12 Jul 200917 Jul 2009
    Conference number: 7

    Conference

    Conference7th European Conference on Luminescent Detectors and Transformers of Ionizing Radiation
    Number7
    CountryPoland
    CityKraków
    Period12/07/200917/07/2009

    Keywords

    • Radiation research and nuclear technologies
    • Radiation physics

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