Dependence of the Voids-Fiber Bragg Grating Radiation Response on Temperature, Dose, and Dose Rate

A. Morana (1) , S. Girard (1) , E. Marin (1) , M. Lancry (2) , J. Grelin (3) , C. Marcandella (4) , P. Paillet (4) , A. Boukenter (1) , Y. Ouerdane (1)

1 LHC - Laboratoire Hubert Curien
2 CHIMSOL - Laboratoire de Physico-Chimie de l'Etat Solide
3 Smartfibers
4 DAM/DIF - DAM Île-de-France

The voids-fiber Bragg gratings (FBGs) are manufactured point by point by focalizing an infrared femtosecond laser in a small fraction of the core and creating a microscopic void. This makes these gratings very resistant and stable to high temperatures. However, until today, only very few tests under radiation have been performed on these FBGs. A complete study on the radiation response of this grating technology under X-rays is here presented, highlighting the dependence of its radiation response on dose, dose rate, irradiation temperature, and preirradiation treatment.

Domains: Engineering Sciences [physics]

A. Morana, S. Girard, E. Marin, M. Lancry, J. Grelin, et al.. Dependence of the Voids-Fiber Bragg Grating Radiation Response on Temperature, Dose, and Dose Rate. IEEE Transactions on Nuclear Science, 2018, 65 (8), pp.1619-1623. ⟨10.1109/TNS.2017.2778882⟩. ⟨ujm-01964816⟩