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

Marco Cannas, Serena Rizzolo, Marcandella, Robin, Perisse, Marin, Cannas, Nacir, Morana, Girard, Gaillardin, Mace, Paillet, Boukenter, Ouerdane, Rizzolo

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We report the study of a radiation resistant single mode optical fiber doped with fluorine exposed to mixed neutron and gamma-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 gamma-radiation (10 MGy) or mixed neutron and. (10(17) n/cm2 + >2 MGy) irradiated samples. Those differences are linked to the defect generation rather than to structural changes of the a-SiO2 host matrix. We show that a modification of the refractive index of similar to 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 degrees C over a sensing length up to similar 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.
Original languageEnglish
Pages (from-to)61-67
Number of pages7
JournalIEEE Transactions on Nuclear Science
Volume64
Publication statusPublished - 2017

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Gamma rays
Neutrons
gamma rays
neutrons
evaluation
fluence
radiation
Single mode fibers
Fluorine
Temperature measurement
fluorine
temperature measurement
Optical fibers
Refractive index
optical fibers
refractivity
Radiation
dosage
Defects
fibers

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Electrical and Electronic Engineering
  • Nuclear Energy and Engineering

Cite this

Evaluation of Distributed OFDR-Based Sensing Performance in Mixed Neutron/Gamma Radiation Environments. / Cannas, Marco; Rizzolo, Serena; Marcandella; Robin; Perisse; Marin; Cannas; Nacir; Morana; Girard; Gaillardin; Mace; Paillet; Boukenter; Ouerdane; Rizzolo.

In: IEEE Transactions on Nuclear Science, Vol. 64, 2017, p. 61-67.

Research output: Contribution to journalArticle

Cannas, M, Rizzolo, S, Marcandella, Robin, Perisse, Marin, Cannas, Nacir, Morana, Girard, Gaillardin, Mace, Paillet, Boukenter, Ouerdane & Rizzolo 2017, 'Evaluation of Distributed OFDR-Based Sensing Performance in Mixed Neutron/Gamma Radiation Environments', IEEE Transactions on Nuclear Science, vol. 64, pp. 61-67.
Cannas, Marco ; Rizzolo, Serena ; Marcandella ; Robin ; Perisse ; Marin ; Cannas ; Nacir ; Morana ; Girard ; Gaillardin ; Mace ; Paillet ; Boukenter ; Ouerdane ; Rizzolo. / Evaluation of Distributed OFDR-Based Sensing Performance in Mixed Neutron/Gamma Radiation Environments. In: IEEE Transactions on Nuclear Science. 2017 ; Vol. 64. pp. 61-67.
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abstract = "We report the study of a radiation resistant single mode optical fiber doped with fluorine exposed to mixed neutron and gamma-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 gamma-radiation (10 MGy) or mixed neutron and. (10(17) n/cm2 + >2 MGy) irradiated samples. Those differences are linked to the defect generation rather than to structural changes of the a-SiO2 host matrix. We show that a modification of the refractive index of similar to 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 degrees C over a sensing length up to similar 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.",
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AU - Perisse, null

AU - Marin, null

AU - Cannas, null

AU - Nacir, null

AU - Morana, null

AU - Girard, null

AU - Gaillardin, null

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