Developments in luminescence measurement techniques

Kristina Jørkov Thomsen, L. Bøtter-Jensen, Phil M. Denby, P. Moska, A.S. Murray

    Research output: Contribution to journalConference articleResearchpeer-review

    Abstract

    We report on our continuing investigation and development of new measurement facilities for use in irradiation, optical stimulation and luminescence signal detection; these facilities have potential application to all forms of luminescence-based retrospective dosimetry, and are particularly intended for use with the Riso TL/OSL reader. We have investigated the potential of new more powerful blue (455 nm) and green (530nm) LEDs, and of gated counting combined with pulsed stimulation light techniques using conventional LEDs. Measurement of time-resolved OSL has resulted in a method of real-time separation of quartz and feldspar signals from mixed samples. We also report on progress in the development, testing and documentation of mini X-ray generators as an alternative to a Sr-90/Y-90 beta source. A conventional 50 kV/1 mA filament tube and a newer 30 kV/0.1 mA cold cathode tube are considered; both types are very stable and reproducible. Other recent developments include the modification of a Riso reader to measure both thermally and optically stimulated electrons (TSE and OSE) from granular or chip phosphors. (c) 2006 Elsevier Ltd. All rights reserved.
    Original languageEnglish
    JournalRadiation Measurements
    Volume41
    Issue number7-8
    Pages (from-to)768-773
    ISSN1350-4487
    DOIs
    Publication statusPublished - 2006
    Event11th International Conference on Luminescence and Electron Spin Resonance Dating - Köln, Germany
    Duration: 24 Jul 200529 Jul 2005

    Conference

    Conference11th International Conference on Luminescence and Electron Spin Resonance Dating
    CountryGermany
    CityKöln
    Period24/07/200529/07/2005

    Keywords

    • LEDs
    • X-ray
    • Luminescence
    • OSL

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