6533b7defe1ef96bd1275edf
RESEARCH PRODUCT
Effects of radiation and hydrogen-loading on the performances of raman-distributed temperature fiber sensors
Sylvain GirardPhilippe PailletMarco CannasC. CangialosiJohan BertrandSylvie Delepine-lesoilleClaude MarcandellaAziz BoukenterYoucef Ouerdanesubject
Raman scatteringnuclear wasteMulti-mode optical fiberOptical fiberMaterials scienceradiation effectbusiness.industrygamma radiationoptical fiber sensorRadiationhydrogen releaseTemperature measurementAtomic and Molecular Physics and Opticslaw.invention[SPI]Engineering Sciences [physics]symbols.namesakelawFiber optic sensorDistributed temperatureHardening (metallurgy)symbolsOptoelectronicsbusinessRaman spectroscopyRaman scatteringdescription
International audience; The integration of Raman-distributed temperature fiber-based sensors (RDTS) into the envisioned French deep geological repository for nuclear wastes, called Cigéo requires evaluating how the performances of RDTS evolve in harsh environments, more precisely in presence of H2 or γ-rays. Both H2 and radiations are shown to affect the temperature measurements made with the single-ended RDTS technology. The amplitudes of the observed effects depend on the different classes of multimode fibers varying in terms of composition and coatings. By selecting the most tolerant fiber structure for the sensing, we could maintain the RDTS performances for such application. A hardening by system studies will be mandatory before integration of single-ended RDTS in Cigéo.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2015-06-15 |