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Article Dans Une Revue Proceedings of SPIE, the International Society for Optical Engineering Année : 2015

Steady state γ-ray radiation effects on Brillouin fiber sensors

Sylvain Girard
Aziz Boukenter
Emmanuel Marin
Philippe Paillet
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  • PersonId : 951923
Youcef Ouerdane

Résumé

Brillouin optical time-domain analysis (BOTDA) sensors offer remarkable advantages for the surveillance of the planned French deep geological radioactive wastes repository, called Cigéo1,2. In this work we study the performances of Brillouin distributed sensors in harsh environment. We evaluate the radiation tolerance of different sensor classes and their responses evolution during γ-ray exposition with 1kGy/h dose rate (to reach ~0.2MGy) and after 1, 3, 6 and 10 MGy accumulated doses. Measurements on strained Ge-doped SMF are reported to highlight the variation on Brillouin scattering proprieties, both intrinsic frequency position of Brillouin shift and its dependence on temperature and strain
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Dates et versions

hal-01211166 , version 1 (03-10-2015)

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Citer

C. Cangialosi, Sylvain Girard, Aziz Boukenter, Emmanuel Marin, Marco Cannas, et al.. Steady state γ-ray radiation effects on Brillouin fiber sensors. Proceedings of SPIE, the International Society for Optical Engineering, 2015, Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 9634, pp.96344V. ⟨10.1117/12.2194990⟩. ⟨hal-01211166⟩
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