The impact of exposing an optical fiber to 6 MeV electrons on the performances of Optical Frequency Domain Reflectometry (OFDR) distributed sensors is investigated. Six different types of optical fibers with different core compositions and coatings have been tested: four fibers are metal-coated (copper, gold or aluminum) for high temperature (> 300°C) operations while the two others have Telecom-grade acrylate coatings for operation below 80°C. The fiber Rayleigh signature used to perform the OFDR sensing remains almost unaffected after an electron exposure. Indeed, the measured radiation-induced temperature errors are lower than about 3°C, close to the setup uncertainties, when the OFDR operates as a temperature sensor.
6 MeV Electron Exposure Effects on OFDR-based Distributed Fiber-based Sensors / Sabatier, C., Rizzolo, S., Morana, A., Allanche, T., Robin, T., Cadier, B., Paillet, P., Gaillardin, M., Duhamel, O., Marcandella, C., Aubert, D., Assaillit, G., Auriel, G., Boukenter, A., Ouerdane, Y., Mescia, L., Marin, E., Girard, S.. - In: IEEE TRANSACTIONS ON NUCLEAR SCIENCE. - ISSN 0018-9499. - STAMPA. - 65:8(2018), pp. 1598-1603. [10.1109/TNS.2018.2804663]
6 MeV Electron Exposure Effects on OFDR-based Distributed Fiber-based Sensors
Mescia, Luciano;
2018
Abstract
The impact of exposing an optical fiber to 6 MeV electrons on the performances of Optical Frequency Domain Reflectometry (OFDR) distributed sensors is investigated. Six different types of optical fibers with different core compositions and coatings have been tested: four fibers are metal-coated (copper, gold or aluminum) for high temperature (> 300°C) operations while the two others have Telecom-grade acrylate coatings for operation below 80°C. The fiber Rayleigh signature used to perform the OFDR sensing remains almost unaffected after an electron exposure. Indeed, the measured radiation-induced temperature errors are lower than about 3°C, close to the setup uncertainties, when the OFDR operates as a temperature sensor.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
