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Preprint
Title Radiation Aging Effect on Electrical Properties of Superconductive Magnet Wires
Author(s) Suraci, Simone Vincenzo (U. Bologna) ; Piccin, Roland (CERN) ; Osuna, Javier (CERN) ; Scheuerlein, Christian (CERN) ; Fabiani, Davide (U. Bologna (main))
Publication 2024
Number of pages 4
Published in: 10.1109/ICD59037.2024.10613191
Presented at 5th International Conference on Dielectrics (ICD 2024), Toulouse, France, 30 Jun - 4 Jul 2024
DOI 10.1109/ICD59037.2024.10613191
Subject category Accelerators and Storage Rings
Keywords Spectroscopy ; Wires ; Superconductivity ; Aging ; Linear particle accelerator ; Dielectrics ; Polymers ; Effect Of Age ; Superconducting Magnets ; Infrared Spectroscopy ; Fourier Transform Infrared ; Fourier Transform Infrared Spectroscopy ; Radiation Dose ; Dielectric Function ; Transform Infrared Spectroscopy ; Dielectric Spectroscopy ; Polyvinyl Acetate ; New Species ; Contact Angle ; Crystalline Phase ; Specific Capacity ; Function Of Age ; Frequency Region ; Age Period ; Fourier Transform Infrared Analysis ; Large Hadron Collider ; Chain Scission ; Insulation System ; Chain Breaking ; Dielectric Analysis ; Biggest Increase ; Polar Materials ; Monotonic Increase ; Polar Area ; Maximum Electric Field ; particle accelerator ; LHC ; PVA ; radiation aging ; insulation aging
Abstract This paper focuses on the effect of high dose radiation on the electric insulation of superconducting wires used in particle accelerator magnets. The analysis focuses on the evolution of the electrical properties, due to radiation doses, of the poly-vinyl acetate (PVA) insulation of these wires, particularly complex permittivity. This aims at verifying the suitability of the dielectric spectroscopy technique as a nondestructive approach for the aging assessment of these wires, usually placed in inaccessible areas. This is achieved by comparing results coming from complex permittivity with oxidation buildup obtained through Fourier Transform Infra-Red (FTIR) spectroscopy.
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