Long-Term Exposure of Fiber Bragg Gratings in the BR1 Low-Flux Nuclear Reactor

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Long-Term Exposure of Fiber Bragg Gratings in the BR1 Low-Flux Nuclear Reactor. / Goussarov, Andrei; Schyns, Marc (Peer reviewer).

In: IEEE transactions on nuclear Science, Vol. 57, No. 4, 04.2010, p. 2044-2048.

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Goussarov, Andrei ; Schyns, Marc. / Long-Term Exposure of Fiber Bragg Gratings in the BR1 Low-Flux Nuclear Reactor. In: IEEE transactions on nuclear Science. 2010 ; Vol. 57, No. 4. pp. 2044-2048.

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@article{2b9aea8243c748b19b84de6198ec1d88,
title = "Long-Term Exposure of Fiber Bragg Gratings in the BR1 Low-Flux Nuclear Reactor",
abstract = "We report the results of a long-term exposure of fiber Bragg gratings in the BR1 low-flux nuclear reactor at SCK CEN in Mol, Belgium. Gratings fabricated in the photosensitive and the standard fibers were installed in February 2000 in a research channel of the reactor and remained there until August 2008. During this time the reactor was operational 4690h so that the gratings received a total thermal/fast neutron fluence ~16.9/1.47 x 1017 n/cm2, and a gamma-dose ~10 MGy. The temperature cycled from 10 to 80 C. All the gratings were easily detectable at the end of the experiment. After more than eight years exposure the amplitude and the shape of the gratings spectra remained unchanged for fibers devoid of hydrogen loading, while FBGs fabricated using hydrogen loading did exhibit moderate changes. The results show that fiber Bragg gratings indeed have potential for long-term temperature monitoring in nuclear installations.",
keywords = "Fiber Bragg gratings, optical fiber nuclear radiation effects, radiation-induced Bragg wavelength shift",
author = "Andrei Goussarov and Marc Schyns",
note = "Score = 10; RADECS 2009 ; Conference date: 14-09-2009 Through 18-09-2009",
year = "2010",
month = apr,
doi = "10.1109/TNS.2010.2042614",
language = "English",
volume = "57",
pages = "2044--2048",
journal = "IEEE transactions on nuclear Science",
issn = "0018-9499",
publisher = "IEEE - Institute of Electrical and Electronics Engineers",
number = "4",

}

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TY - JOUR

T1 - Long-Term Exposure of Fiber Bragg Gratings in the BR1 Low-Flux Nuclear Reactor

AU - Goussarov, Andrei

A2 - Schyns, Marc

N1 - Score = 10

PY - 2010/4

Y1 - 2010/4

N2 - We report the results of a long-term exposure of fiber Bragg gratings in the BR1 low-flux nuclear reactor at SCK CEN in Mol, Belgium. Gratings fabricated in the photosensitive and the standard fibers were installed in February 2000 in a research channel of the reactor and remained there until August 2008. During this time the reactor was operational 4690h so that the gratings received a total thermal/fast neutron fluence ~16.9/1.47 x 1017 n/cm2, and a gamma-dose ~10 MGy. The temperature cycled from 10 to 80 C. All the gratings were easily detectable at the end of the experiment. After more than eight years exposure the amplitude and the shape of the gratings spectra remained unchanged for fibers devoid of hydrogen loading, while FBGs fabricated using hydrogen loading did exhibit moderate changes. The results show that fiber Bragg gratings indeed have potential for long-term temperature monitoring in nuclear installations.

AB - We report the results of a long-term exposure of fiber Bragg gratings in the BR1 low-flux nuclear reactor at SCK CEN in Mol, Belgium. Gratings fabricated in the photosensitive and the standard fibers were installed in February 2000 in a research channel of the reactor and remained there until August 2008. During this time the reactor was operational 4690h so that the gratings received a total thermal/fast neutron fluence ~16.9/1.47 x 1017 n/cm2, and a gamma-dose ~10 MGy. The temperature cycled from 10 to 80 C. All the gratings were easily detectable at the end of the experiment. After more than eight years exposure the amplitude and the shape of the gratings spectra remained unchanged for fibers devoid of hydrogen loading, while FBGs fabricated using hydrogen loading did exhibit moderate changes. The results show that fiber Bragg gratings indeed have potential for long-term temperature monitoring in nuclear installations.

KW - Fiber Bragg gratings

KW - optical fiber nuclear radiation effects

KW - radiation-induced Bragg wavelength shift

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_111749

UR - http://knowledgecentre.sckcen.be/so2/bibref/7848

U2 - 10.1109/TNS.2010.2042614

DO - 10.1109/TNS.2010.2042614

M3 - Article

VL - 57

SP - 2044

EP - 2048

JO - IEEE transactions on nuclear Science

JF - IEEE transactions on nuclear Science

SN - 0018-9499

IS - 4

T2 - RADECS 2009

Y2 - 14 September 2009 through 18 September 2009

ER -

ID: 326400