Comparison of gamma-radiation induced attenuation in al-doped, p-doped and ge-doped fibres for dosimetry

Alexey V. Faustov, Andrei Goussarov, Marc Wuilpart, A.A. Fotiadi, L. B. Liokumovich, I. O. Zolotovskiy, A.L. Tomashuk, T. De Schoutheete, Patrice Mégret

    Research outputpeer-review

    47 Scopus citations


    We have investigated radiation induced absorption in Al-doped, P-doped and Ge-doped optical fibres under 60 Co source gamma-radiation up to a total dose of 71 kGy at two temperatures 30 and 80° C. The Al-doped and P-doped fibres demonstrated high radiation sensitivity required for the optical fibre dosimetry. The RIA response to temperature increase from 30 to 80° C depended on the dopant. In Al-doped fibres the absorption level decreased by 25% whereas in P-doped fibres it increased by at least 10%. For comparison we also tested standard telecom-grade Ge-doped fibres. Such fibres demonstrated a monotonous rise of the RIA during the whole irradiation with a small decrease of sensitivity at the higher temperature.

    Original languageEnglish
    Article number6576258
    Pages (from-to)2511-2517
    Number of pages7
    JournalIEEE transactions on nuclear Science
    Issue number4
    StatePublished - 2013

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics
    • Nuclear Energy and Engineering
    • Electrical and Electronic Engineering

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