Digital positron lifetime spectrometer for measurements of radioactive materials

Maarten Jardin, Abderrahim Al Mazouzi, Marlies Lambrecht, Andrey Rempel, Yasuyoshi Nagai, Eric van Walle, Lorenzo Malerba

    Research outputpeer-review


    A digital positron lifetime spectrometer for the measurements of 2 GBq level radioactive materials has been constructed and successfully tested. The equipment consists of a state-of-the-art digital oscilloscope and three movable scintillation detectors operating in triple-coincidence mode. The time resolution of 188 ps full-width at half-maximum (FWHM) is achieved for the positron lifetime measurements of radioactive specimens. Also by comparison of measurements of well-known material with and without high 60Co background radiation the ability to measure radioactive specimens is proved. In this paper the performance, construction, installation, optimization and calibration of the setup is reported.
    Original languageEnglish
    Pages (from-to)4001-4003
    JournalPhysica Status Solidi (C)
    Issue number10
    StatePublished - 9 Aug 2007
    EventThe XIVth International Conference on Positron Annihilation - McMaster University, Hamilton
    Duration: 23 Jul 200628 Jul 2006

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