An organic dye in a polymer matrix – A search for a scintillator with long luminescent lifetime

Lars René Lindvold, Anders Ravnsborg Beierholm, Claus Erik Andersen

    Research output: Contribution to journalConference articleResearchpeer-review

    Abstract

    Fiber-coupled organic plastic scintillators enable dose rate monitoring in conjunction with pulsed radiation sources like linear medical accelerators. The accelerator, however, generates a significant amount of stray ionizing radiation. This radiation excites the long optical fiber cable (15–20 m), connecting the scintillator with the optical detector circuit, causing parasitic luminescence in the optical fiber. In this paper we propose a method for circumventing this problem. The method is based on the use of an organic scintillator with a long luminescent lifetime (room temperature phosphorescence). The long lifetime of the scintillator signal facilitates a temporal gating of the dose rate signal with respect to the parasitic luminescence from the optical fiber.
    Original languageEnglish
    JournalRadiation Measurements
    Volume45
    Issue number3-6
    Pages (from-to)615-617
    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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