Article (Scientific journals)
Online Gamma Radiation Monitoring Using Few-Mode Polymer CYTOP Fiber Bragg Gratings.
Chapalo, Ivan; Gusarov, Andrei; Ioannou, Andreas et al.
2022In Sensors, 23 (1), p. 39
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Keywords :
CYTOP; fiber Bragg gratings; gamma radiation; gamma radiation dosimetry; polymer optical fiber; polymer perfluorinated fiber; Atomic and Molecular Physics, and Optics
Abstract :
[en] We investigated the gamma radiation response of fiber Bragg gratings (FBGs) inscribed in a few-mode polymer optical fiber. The fiber had a graded-index CYTOP core of 20 µm and XYLEX overclad of 250 µm in diameter. Four FBGs were exposed to gamma radiation during four irradiation sessions at a 5.3 kGy/h dose rate. The FBGs showed a linear Bragg wavelength shift with the received dose with a mean sensitivity of -3.95 pm/kGy at 43 °C. The increased temperature provides a rise in the sensitivity: it reached -10.6 pm/kGy at 58 °C. After irradiation, the FBGs showed partial recovery, which increased with the received dose. Furthermore, the FBG's reflection power decreased with the dose. This attenuation is mainly due to insertion losses caused by the radiation induced attenuation in the CYTOP fiber. Linear response to the received dose makes CYTOP FBGs attractive for gamma radiation dosimetry. However, temperature dependence of the sensitivity should be compensated in practical applications.
Disciplines :
Electrical & electronics engineering
Materials science & engineering
Physics
Author, co-author :
Chapalo, Ivan  ;  Université de Mons - UMONS > Faculté Polytechnique > Service d'Electromagnétisme et Télécommunications ; Université de Mons - UMONS
Gusarov, Andrei;  Belgian Nuclear Research Centre (SCK-CEN), 2400 Mol, Belgium
Ioannou, Andreas ;  Photonics and Optical Sensors Research Laboratory, Cyprus University of Technology, Limassol 3036, Cyprus
Pospori, Andreas ;  Photonics and Optical Sensors Research Laboratory, Cyprus University of Technology, Limassol 3036, Cyprus
Chah, Karima ;  Université de Mons - UMONS > Faculté Polytechnique > Electromagnétisme et Télécommunications ; Université de Mons - UMONS
Nan, Yinggang  ;  Université de Mons - UMONS > Faculté Polytechnique > Service d'Electromagnétisme et Télécommunications
Kalli, Kyriacos ;  Photonics and Optical Sensors Research Laboratory, Cyprus University of Technology, Limassol 3036, Cyprus
Mégret, Patrice  ;  Université de Mons - UMONS > Faculté Polytechnique > Service d'Electromagnétisme et Télécommunications
Language :
English
Title :
Online Gamma Radiation Monitoring Using Few-Mode Polymer CYTOP Fiber Bragg Gratings.
Publication date :
21 December 2022
Journal title :
Sensors
ISSN :
1424-8220
eISSN :
1424-8220
Publisher :
MDPI AG, Switzerland
Volume :
23
Issue :
1
Pages :
39
Peer reviewed :
Peer Reviewed verified by ORBi
Research unit :
F108 - Electromagnétisme et Télécommunications
Research institute :
R400 - Institut de Recherche en Science et Ingénierie des Matériaux
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique
Horizon 2020 program of the European Union
Cyprus Research and Innovation Foundation
Funding number :
T.0163.19 “RADPOF”
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