Embedded fiber-optic sensors for in-pile applications

Christian Petrie; Niyanth Sridharan; Curtis Frederick; Travis McFalls; Sudarsanam Suresh Babu; Adam Hehr; Mark Norfolk; John Sheridan

Embedded fiber-optic sensors for in-pile applications

Christian Petrie, Niyanth Sridharan, Curtis Frederick, Travis McFalls, Sudarsanam Suresh Babu, Adam Hehr, Mark Norfolk, John Sheridan

Advanced Fuel Fabrication and Instrument

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

5 Scopus citations

Abstract

Qualification and commercialization of new nuclear fuels and materials requires a comprehensive set of data regarding behavior under irradiation. There are currently very limited options for in-situ monitoring of material evolution during irradiation due to the extremely harsh environment (i.e., high temperatures and intense radiation) of materials test reactors. This paper describes work being performed at Oak Ridge National Laboratory to embed metal-coated fiber-optic sensors into in-core irradiation experiments to enable measurement of radial dimensional changes and spatially distributed temperature and strain. Some critical issues that must be addressed before embedded fiber optics can be deployed in-core include (1) embedding of metal-coated fibers without failure or prohibitively large signal attenuation, (2) embedding in curved channels to allow for radial dimensional measurements, and (3) demonstrating that embedded fibers can survive the large stresses that result from differential thermal expansion between the glass fiber and the surrounding metal matrix. This work shows how optical fibers have been successfully embedded in aluminum and copper alloys in both straight and curved channels with various bend radii. The embedded fibers have also survived heating to temperatures of 500°C and cooling to room temperature. This paper presents some of the experimental results including measured light attenuation resulting from embedding with and without bends and high-temperature testing.

Original language	English
Title of host publication	11th Nuclear Plant Instrumentation, Control, and Human-Machine Interface Technologies, NPIC and HMIT 2019
Publisher	American Nuclear Society
Pages	459-468
Number of pages	10
ISBN (Electronic)	9780894487835
State	Published - 2019
Event	11th Nuclear Plant Instrumentation, Control, and Human-Machine Interface Technologies, NPIC and HMIT 2019 - Orlando, United States Duration: Feb 9 2019 → Feb 14 2019

Publication series

Name	11th Nuclear Plant Instrumentation, Control, and Human-Machine Interface Technologies, NPIC and HMIT 2019

Conference

Conference	11th Nuclear Plant Instrumentation, Control, and Human-Machine Interface Technologies, NPIC and HMIT 2019
Country/Territory	United States
City	Orlando
Period	02/9/19 → 02/14/19

Funding

This research is sponsored by the Laboratory Directed Research and Development Program of Oak Ridge National Laboratory (ORNL), managed by UT-Battelle, LLC, for the US Department of Energy. This manuscript has been authored by UT-Battelle, LLC, under contract DE-AC05-00OR22725 with the US Department of Energy (DOE). The US government retains and the publisher, by accepting the article for publication, acknowledges that the US government retains a nonexclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for US government purposes. DOE will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan).

Funders	Funder number
US Department of Energy
UT-Battelle
U.S. Department of Energy
Oak Ridge National Laboratory
UT-Battelle

Keywords

Embedded
Fiber optics
In-pile
Sensors

Cite this

Petrie, C., Sridharan, N., Frederick, C., McFalls, T., Suresh Babu, S., Hehr, A., Norfolk, M., & Sheridan, J. (2019). Embedded fiber-optic sensors for in-pile applications. In 11th Nuclear Plant Instrumentation, Control, and Human-Machine Interface Technologies, NPIC and HMIT 2019 (pp. 459-468). (11th Nuclear Plant Instrumentation, Control, and Human-Machine Interface Technologies, NPIC and HMIT 2019). American Nuclear Society.

Petrie, Christian ; Sridharan, Niyanth ; Frederick, Curtis et al. / Embedded fiber-optic sensors for in-pile applications. 11th Nuclear Plant Instrumentation, Control, and Human-Machine Interface Technologies, NPIC and HMIT 2019. American Nuclear Society, 2019. pp. 459-468 (11th Nuclear Plant Instrumentation, Control, and Human-Machine Interface Technologies, NPIC and HMIT 2019).

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title = "Embedded fiber-optic sensors for in-pile applications",

abstract = "Qualification and commercialization of new nuclear fuels and materials requires a comprehensive set of data regarding behavior under irradiation. There are currently very limited options for in-situ monitoring of material evolution during irradiation due to the extremely harsh environment (i.e., high temperatures and intense radiation) of materials test reactors. This paper describes work being performed at Oak Ridge National Laboratory to embed metal-coated fiber-optic sensors into in-core irradiation experiments to enable measurement of radial dimensional changes and spatially distributed temperature and strain. Some critical issues that must be addressed before embedded fiber optics can be deployed in-core include (1) embedding of metal-coated fibers without failure or prohibitively large signal attenuation, (2) embedding in curved channels to allow for radial dimensional measurements, and (3) demonstrating that embedded fibers can survive the large stresses that result from differential thermal expansion between the glass fiber and the surrounding metal matrix. This work shows how optical fibers have been successfully embedded in aluminum and copper alloys in both straight and curved channels with various bend radii. The embedded fibers have also survived heating to temperatures of 500°C and cooling to room temperature. This paper presents some of the experimental results including measured light attenuation resulting from embedding with and without bends and high-temperature testing.",

keywords = "Embedded, Fiber optics, In-pile, Sensors",

author = "Christian Petrie and Niyanth Sridharan and Curtis Frederick and Travis McFalls and {Suresh Babu}, Sudarsanam and Adam Hehr and Mark Norfolk and John Sheridan",

note = "Publisher Copyright: {\textcopyright} 2018 Westinghouse Electric Company LLC All Rights Reserved; 11th Nuclear Plant Instrumentation, Control, and Human-Machine Interface Technologies, NPIC and HMIT 2019 ; Conference date: 09-02-2019 Through 14-02-2019",

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language = "English",

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Petrie, C, Sridharan, N, Frederick, C, McFalls, T, Suresh Babu, S, Hehr, A, Norfolk, M & Sheridan, J 2019, Embedded fiber-optic sensors for in-pile applications. in 11th Nuclear Plant Instrumentation, Control, and Human-Machine Interface Technologies, NPIC and HMIT 2019. 11th Nuclear Plant Instrumentation, Control, and Human-Machine Interface Technologies, NPIC and HMIT 2019, American Nuclear Society, pp. 459-468, 11th Nuclear Plant Instrumentation, Control, and Human-Machine Interface Technologies, NPIC and HMIT 2019, Orlando, United States, 02/9/19.

Embedded fiber-optic sensors for in-pile applications. / Petrie, Christian; Sridharan, Niyanth; Frederick, Curtis et al.
11th Nuclear Plant Instrumentation, Control, and Human-Machine Interface Technologies, NPIC and HMIT 2019. American Nuclear Society, 2019. p. 459-468 (11th Nuclear Plant Instrumentation, Control, and Human-Machine Interface Technologies, NPIC and HMIT 2019).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

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AU - Petrie, Christian

AU - Sridharan, Niyanth

AU - Frederick, Curtis

AU - McFalls, Travis

AU - Suresh Babu, Sudarsanam

AU - Hehr, Adam

AU - Norfolk, Mark

AU - Sheridan, John

PY - 2019

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N2 - Qualification and commercialization of new nuclear fuels and materials requires a comprehensive set of data regarding behavior under irradiation. There are currently very limited options for in-situ monitoring of material evolution during irradiation due to the extremely harsh environment (i.e., high temperatures and intense radiation) of materials test reactors. This paper describes work being performed at Oak Ridge National Laboratory to embed metal-coated fiber-optic sensors into in-core irradiation experiments to enable measurement of radial dimensional changes and spatially distributed temperature and strain. Some critical issues that must be addressed before embedded fiber optics can be deployed in-core include (1) embedding of metal-coated fibers without failure or prohibitively large signal attenuation, (2) embedding in curved channels to allow for radial dimensional measurements, and (3) demonstrating that embedded fibers can survive the large stresses that result from differential thermal expansion between the glass fiber and the surrounding metal matrix. This work shows how optical fibers have been successfully embedded in aluminum and copper alloys in both straight and curved channels with various bend radii. The embedded fibers have also survived heating to temperatures of 500°C and cooling to room temperature. This paper presents some of the experimental results including measured light attenuation resulting from embedding with and without bends and high-temperature testing.

AB - Qualification and commercialization of new nuclear fuels and materials requires a comprehensive set of data regarding behavior under irradiation. There are currently very limited options for in-situ monitoring of material evolution during irradiation due to the extremely harsh environment (i.e., high temperatures and intense radiation) of materials test reactors. This paper describes work being performed at Oak Ridge National Laboratory to embed metal-coated fiber-optic sensors into in-core irradiation experiments to enable measurement of radial dimensional changes and spatially distributed temperature and strain. Some critical issues that must be addressed before embedded fiber optics can be deployed in-core include (1) embedding of metal-coated fibers without failure or prohibitively large signal attenuation, (2) embedding in curved channels to allow for radial dimensional measurements, and (3) demonstrating that embedded fibers can survive the large stresses that result from differential thermal expansion between the glass fiber and the surrounding metal matrix. This work shows how optical fibers have been successfully embedded in aluminum and copper alloys in both straight and curved channels with various bend radii. The embedded fibers have also survived heating to temperatures of 500°C and cooling to room temperature. This paper presents some of the experimental results including measured light attenuation resulting from embedding with and without bends and high-temperature testing.

KW - Embedded

KW - Fiber optics

KW - In-pile

KW - Sensors

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M3 - Conference contribution

AN - SCOPUS:85067113393

T3 - 11th Nuclear Plant Instrumentation, Control, and Human-Machine Interface Technologies, NPIC and HMIT 2019

SP - 459

EP - 468

BT - 11th Nuclear Plant Instrumentation, Control, and Human-Machine Interface Technologies, NPIC and HMIT 2019

PB - American Nuclear Society

T2 - 11th Nuclear Plant Instrumentation, Control, and Human-Machine Interface Technologies, NPIC and HMIT 2019

Y2 - 9 February 2019 through 14 February 2019

ER -

Petrie C, Sridharan N, Frederick C, McFalls T, Suresh Babu S, Hehr A et al. Embedded fiber-optic sensors for in-pile applications. In 11th Nuclear Plant Instrumentation, Control, and Human-Machine Interface Technologies, NPIC and HMIT 2019. American Nuclear Society. 2019. p. 459-468. (11th Nuclear Plant Instrumentation, Control, and Human-Machine Interface Technologies, NPIC and HMIT 2019).

Embedded fiber-optic sensors for in-pile applications

Abstract

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Funding

Keywords

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