Test of Fibre Bragg Gratings samples under High Fast Neutrons Fluence
Résumé
The performances of Optical fibre sensors (OFS) can be severely affected by high level of radiations. When the fast neutron fluence reaches 10$^{18}$ to 10$^{19}$ n/cm², the density and index variations associated to structural changes may deteriorate drastically the performances of OFS even if they are based on rad hard fibres, by causing direct errors in the measurements of temperature and/or strain changes.
The aim of the present study is to access the effect of nuclear radiations on the Fabry Perot (FP) and of Fibre Bragg Grating (FBG) sensors through the comparison of measurements made on these OFS - or part of them - before and after irradiation.
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Commentaire | article paru dans les proceedings de la conférence ANIMMA 2017. Il n'y a pas eu de version longue de cette présentation. Ce fichier constitue donc le document principal pour cette conférence |