Cryogenic temperature monitoring in superconducting power transmission line at CERN with hybrid multi-point and distributed fiber optic sensors

A. Chiuchiolo; L. Palmieri; M. Consales; M. Giordano; H. Bajas; A. Galtarossa; M. Bajko; A. Cusano

doi:10.1117/12.2194748

28 September 2015 Cryogenic temperature monitoring in superconducting power transmission line at CERN with hybrid multi-point and distributed fiber optic sensors

A. Chiuchiolo, L. Palmieri, M. Consales, M. Giordano, H. Bajas, A. Galtarossa, M. Bajko, A. Cusano

Author Affiliations +

Proceedings Volume 9634, 24th International Conference on Optical Fibre Sensors; 96341U (2015) https://doi.org/10.1117/12.2194748
Event: International Conference on Optical Fibre Sensors (OFS24), 2015, Curitiba, Brazil

Abstract

Distributed and multi-point fiber-optic based measurements of cryogenic temperature down to 30 K are presented. Measurements have been performed along the cryostat of a superconducting power transmission line, which is currently being tested at CERN over a length of about 20 m. Multi-point measurements were based on two kinds of FBG with different coatings (epoxy and PMMA). In addition, distributed measurements exploited optical frequency-domain reflectometry to analyze the Rayleigh scattering along two concatenated fibers with different coatings (acrylate and polyimmide). Results confirm the viability of these approaches to monitor cryogenic temperatures along a superconducting transmission line.

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A. Chiuchiolo, L. Palmieri, M. Consales, M. Giordano, H. Bajas, A. Galtarossa, M. Bajko, and A. Cusano "Cryogenic temperature monitoring in superconducting power transmission line at CERN with hybrid multi-point and distributed fiber optic sensors", Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 96341U (28 September 2015); https://doi.org/10.1117/12.2194748

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