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Radiation-induced attenuation in aluminum- and aluminum-thulium-doped optical fibers

Antoine Gallet, Matthieu Caussanel, Hervé Duval, Kadar Mahamoud Djama, Stéphane Thil, Julien Eynard, Stéphane Grieu, Stanislaw Trzesien, Michèle Ude, and Bernard Dussardier

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Abstract

Gamma-ray-induced attenuation in Al-doped and Al/Tm-co-doped optical fibers is investigated in the visible and near-infrared domain up to 1 Gy. The behavior of radiation-induced attenuation (RIA) regarding dose and dose rate is discussed. Our results reveal high sensitivities for both types of fibers at low gamma ray doses and also reveal that Al/Tm fibers are very promising at original interrogation wavelengths for dosimetry applications.

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