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Evaluation of Distributed OFDR-Based Sensing Performance in Mixed Neutron/Gamma Radiation Environments

Rizzolo, Serena and Boukenter, Aziz and Marin, Emmanuel and Robin, Thierry and Cannas, Marco and Morana, Adriana and Périsse, Jocelyn and Macé, Jean Reynald and Ouerdane, Youcef and Nacir, Bouzekri and Paillet, Philippe and Marcandella, Claude and Gaillardin, Marc and Girard, Sylvain Evaluation of Distributed OFDR-Based Sensing Performance in Mixed Neutron/Gamma Radiation Environments. (2017) IEEE Transactions on Nuclear Science, 64 (1). 61-67. ISSN 0018-9499

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Official URL: https://doi.org/10.1109/TNS.2016.2606566

Abstract

We report the study of a radiation resistant single mode optical fiber doped with fluorine exposed to mixed neutron and γ-radiation up to 10 17 n/cm 2 fluence and 2 MGy dose to evaluate its performances when used as the sensing element of a distributed Optical Frequency Domain Reflectometry (OFDR). The use of complementary spectroscopic techniques highlights some differences between the responses of solely γ-radiation (10 MGy) or mixed neutron and y (10 17 n/cm 2+ 2 MGy) irradiated samples. Those differences are linked to the defect generation rather than to structural changes of the α-SiO 2 host matrix. We show that a modification of the refractive index of ~ 10 -5 is induced at the highest investigated neutron fluence. However, the feasibility of distributed temperature measurements along the irradiated fiber is demonstrated with an accuracy of 0.1 °C over a sensing length up to ~ 130 m with the tested OBR4600 interrogator. These results are very promising for the integration of OFDR sensors in mixed neutron and gamma radiation environments

Item Type:Article
Additional Information:Thanks to the IEEE (Institute of Electrical and Electronics Engineers). This paper is available at : https://ieeexplore.ieee.org/document/7562534 “© 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
HAL Id:hal-01528181
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:Other partners > AREVA (FRANCE)
French research institutions > Commissariat à l'Energie Atomique et aux énergies alternatives - CEA (FRANCE)
French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Other partners > Institut d'optique Graduate School - IOGS (FRANCE)
Other partners > Université Jean Monnet - St Etienne (FRANCE)
Other partners > Centre National de l’Energie, des Sciences et des Techniques Nucléaires - CNESTEN (MAROC)
Other partners > iXblue (FRANCE)
Other partners > Università degli studi di Palermo (ITALY)
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Deposited On:12 Mar 2019 13:54

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