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Proceedings Paper

Cryogenic temperature monitoring in superconducting power transmission line at CERN with hybrid multi-point and distributed fiber optic sensors
Author(s): A. Chiuchiolo; L. Palmieri; M. Consales; M. Giordano; H. Bajas; A. Galtarossa; M. Bajko; A. Cusano
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Paper 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.

Paper Details

Date Published: 28 September 2015
PDF: 4 pages
Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 96341U (28 September 2015); doi: 10.1117/12.2194748
Show Author Affiliations
A. Chiuchiolo, Univ. degli Studi di Sannio (Italy)
CERN (Switzerland)
L. Palmieri, Univ. degli Studi di Padova (Italy)
CERN (Switzerland)
M. Consales, Univ. degli Studi del Sannio (Italy)
CERN (Switzerland)
M. Giordano, Institute for Composite and Biomedical Materials, CNR (Italy)
H. Bajas, CERN (Switzerland)
A. Galtarossa, Univ. degli Studi di Padova (Italy)
M. Bajko, CERN (Switzerland)
A. Cusano, Univ. degli Studi del Sannio (Italy)

Published in SPIE Proceedings Vol. 9634:
24th International Conference on Optical Fibre Sensors
Hypolito José Kalinowski; José Luís Fabris; Wojtek J. Bock, Editor(s)

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