Optical fiber sensors to improve the safety of nuclear power plants - CEA - Commissariat à l’énergie atomique et aux énergies alternatives Access content directly
Conference Papers Year : 2013

Optical fiber sensors to improve the safety of nuclear power plants

Abstract

Safety must always prevail in Nuclear Power Plants (NPPs), as shown at Fukushima-Daiichi. So, innovations are clearly needed to strengthen instrumentations, which went inoperative during this nuclear accident as a consequence of power supply losses. Possible improvements concern materials and structures, which may be remotely monitored thanks to Optical Fiber Sensors (OFS). We detail topics involving OFS helpful for monitoring, in nominal conditions as well as during a severe accident. They include distributed sensing (Rayleigh, Raman, Brillouin) for both temperature sensing and structure monitoring as well as H2 concentration and ionizing radiation monitoring. For future plants, Fiber Bragg Grating (FBG) sensors are considered up to high temperature for sodium-cooled fast reactor monitoring. These applications can benefit from fiber advantages: sensor multiplexing, multi-km range, no risk-to-people, no common failure mode with other technologies, remote sensing, and the ability to operate in case of power supply lost in the NPP.
Fichier principal
Vignette du fichier
article_PierreFerdinand_Asia Pacific Optical Sensors Conference 2013.pdf (416.48 Ko) Télécharger le fichier
Origin Files produced by the author(s)

Dates and versions

cea-01823920 , version 1 (23-08-2023)

Identifiers

Cite

Pierre Ferdinand, Sylvain Magne, Guillaume Laffont. Optical fiber sensors to improve the safety of nuclear power plants. Proc. SPIE 8924, Fourth Asia Pacific Optical Sensors Conference, Oct 2013, Wuhan, China. pp.89242G, ⟨10.1117/12.2033922⟩. ⟨cea-01823920⟩
61 View
79 Download

Altmetric

Share

Gmail Mastodon Facebook X LinkedIn More