title: Radiation effects on optical frequency domain reflectometry fiber-based sensor.
abstract: We investigate the radiation effects on germanosilicate optical fiber acting as the sensing element of optical frequency domain reflectometry devices. Thanks to a new setup permitting to control temperature during irradiation, we evaluate the changes induced by 10 keV x rays on their Rayleigh response up to 1 MGy in a temperature range from -40°C up to 75°C. Irradiation at fixed temperature points out that its measure is reliable during both irradiation and the recovery process. Mixed temperature and radiation measurements show that changing irradiation temperature leads to an error in distributed measurements that depends on the calibration procedure. These results demonstrate that Rayleigh-based optical fiber sensors are very promising for integration in harsh environments.
authors.forename: S
authors.initials: S
authors.lastname: Rizzolo
authors.forename: E
authors.initials: E
authors.lastname: Marin
authors.forename: M
authors.initials: M
authors.lastname: Cannas
authors.forename: A
authors.initials: A
authors.lastname: Boukenter
authors.forename: Y
authors.initials: Y
authors.lastname: Ouerdane
authors.forename: J
authors.initials: J
authors.lastname: Périsse
authors.forename: J-R
authors.initials: JR
authors.lastname: Macé
authors.forename: S
authors.initials: S
authors.lastname: Bauer
authors.forename: C
authors.initials: C
authors.lastname: Marcandella
authors.forename: P
authors.initials: P
authors.lastname: Paillet
authors.forename: S
authors.initials: S
authors.lastname: Girard