دورية أكاديمية
First temperature database achieved with Fiber Bragg Grating sensors in uncooled plasma facing components of the WEST lower divertor
| العنوان: | First temperature database achieved with Fiber Bragg Grating sensors in uncooled plasma facing components of the WEST lower divertor |
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| المؤلفون: | Corre, Y, Chanet, N, Cotillard, Romain, Gaspar, J, Laffont, Guillaume, Pocheau, C, Caulier, G, Destouche, C, Gardarein, J-L, Firdaouss, M, Houry, M, Missirlian, M, Roussel, Nicolas |
| المساهمون: | Institut de Recherche sur la Fusion par confinement Magnétique (IRFM), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Laboratoire Capteurs Fibres Optiques (CEA, LIST) (LCFO (CEA, LIST)), Département Métrologie Instrumentation & Information (CEA, LIST) (DM2I (CEA, LIST)), Laboratoire d'Intégration des Systèmes et des Technologies (LIST (CEA)), Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Laboratoire d'Intégration des Systèmes et des Technologies (LIST (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut universitaire des systèmes thermiques industriels (IUSTI), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS), CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), ANR-11-IDEX-0001,Amidex,INITIATIVE D'EXCELLENCE AIX MARSEILLE UNIVERSITE(2011), European Project: 633053,H2020,EURATOM-Adhoc-2014-20,EUROfusion(2014) |
| المصدر: | ISSN: 0920-3796 ; Fusion Engineering and Design ; https://amu.hal.science/hal-03583708Test ; Fusion Engineering and Design, 2021, 170, pp.112528. ⟨10.1016/j.fusengdes.2021.112528⟩ ; https://www.sciencedirect.com/science/article/pii/S0920379621003045Test. |
| بيانات النشر: | HAL CCSD Elsevier |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Regenerated Fiber Bragg grating, Fiber Bragg Grating, regeneration, optical fiber sensor, optical fiber temperature sensing probe, high temperature measurement, plasma heat load, Instrumentation, Nuclear instrumentation, Distributed and Quasi-distributed sensing, WEST, tokamak, divertor, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic |
| الوصف: | International audience ; Plasma Facing Components (PFCs) temperature measurement is required to ensure safe high power for long pulse tokamak operation and for physics studies. A set of twenty thermocouples (TCs) and four optical fiber temperature sensing probes, each of them including eleven wavelengthmultiplexed fiber Bragg gratings (FBGs) written with UV radiation, have been integrated and deployed in the WEST lower divertor. To avoid any thermal erasure occurring above 400°C, the gratings have been regenerated using a high temperature annealing process. The FBG probes are embedded in tungsten-coated graphite components with no active cooling. The diagnostic was working correctly from the first plasma breakdown achieved in WEST (in 2017) until the first dismantling of the lower divertor three years later (2020). Collected data are sorted by temperature range to investigate the ageing of both PFCs and diagnostics. Measurements obtained with FBGs and TCs are consistent, no long-term drift is reported during the overall period of use. The maximum temperature reported by FBGs in the divertor is 830 °C obtained with 90 MJ of cumulated plasma energy in one pulse. A short but reversible collapse of the Bragg peak (from 5 down to 2 dB) has been observed under high temperature due to the strong temperature gradients measured along the fiber (about 20°C/mm, for an FBG size of 3 mm). This feedback demonstrates that regenerated FBGs are suitable for long-term temperature monitoring in tokamak environment with high heat load, high temperature and gradient, strong magnetic field and vacuum constraint. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| ردمك: | 978-0-920379-62-2 0-920379-62-1 |
| العلاقة: | info:eu-repo/grantAgreement//633053/EU/Implementation of activities described in the Roadmap to Fusion during Horizon 2020 through a Joint programme of the members of the EUROfusion consortium/EUROfusion; hal-03583708; https://amu.hal.science/hal-03583708Test; https://amu.hal.science/hal-03583708/documentTest; https://amu.hal.science/hal-03583708/file/Papier_REXDTFIB1_final.pdfTest |
| DOI: | 10.1016/j.fusengdes.2021.112528 |
| الإتاحة: | https://doi.org/10.1016/j.fusengdes.2021.112528Test https://amu.hal.science/hal-03583708Test https://amu.hal.science/hal-03583708/documentTest https://amu.hal.science/hal-03583708/file/Papier_REXDTFIB1_final.pdfTest |
| حقوق: | http://creativecommons.org/licenses/by-nc-ndTest/ ; info:eu-repo/semantics/OpenAccess |
| رقم الانضمام: | edsbas.FDD0998F |
| قاعدة البيانات: | BASE |
| ردمك: | 9780920379622 0920379621 |
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| DOI: | 10.1016/j.fusengdes.2021.112528 |