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High frequency response of thick REBCO coated conductors in the framework of the FCC study
A thorough microwave response study of high temperature superconductors, considered as an alternative beam screen coating, has become integral in the design decisions for CERN’s future research infrastructure. Here, we present the surface resistance $R_{s}$ of various $\text {REBa}_{2}\text {Cu}_{3}...
Autores principales: | , , , , , , , , , |
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Lenguaje: | eng |
Publicado: |
2020
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Materias: | |
Acceso en línea: | https://dx.doi.org/10.1038/s41598-020-69004-z http://cds.cern.ch/record/2725333 |
_version_ | 1780966046272847872 |
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author | Romanov, Artur Krkotić, Patrick Telles, Guilherme O'Callaghan, Joan Pont, Montse Perez, Francis Granados, Xavier Calatroni, Sergio Puig, Teresa Gutierrez, Joffre |
author_facet | Romanov, Artur Krkotić, Patrick Telles, Guilherme O'Callaghan, Joan Pont, Montse Perez, Francis Granados, Xavier Calatroni, Sergio Puig, Teresa Gutierrez, Joffre |
author_sort | Romanov, Artur |
collection | CERN |
description | A thorough microwave response study of high temperature superconductors, considered as an alternative beam screen coating, has become integral in the design decisions for CERN’s future research infrastructure. Here, we present the surface resistance $R_{s}$ of various $\text {REBa}_{2}\text {Cu}_{3}\text {O}_{7-x}$ (RE = rare earth) coated conductors available in large scale as a function of magnetic field in a broad temperature range measured by a Hakki–Coleman type resonator with resonant frequency $\nu \approx {8}\,{\text {GHz}}$. Analysis of the high frequency dissipation supported by DC transport characterization reveals the vortex dynamics in thick $\text {REBa}_{2}\text {Cu}_{3}\text {O}_{7-x}$ films. Determined microscopic vortex parameters span over a wide range of magnitudes and reflect the relevance of the superconducting layer’s microstructure. We demonstrate that the depinning frequencies $\nu _0$ surpass $\nu$, which confirms the operation in high performing, low dissipation pinning regime at measurement conditions. Surface impedance extrapolation to FCC-hh conditions points towards a significant outperformance of copper by coated conductors in terms of surface resistance. The surface resistance margins would open up potential ways for a more efficient frontier circular collider. |
id | oai-inspirehep.net-1808843 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2020 |
record_format | invenio |
spelling | oai-inspirehep.net-18088432020-08-03T12:38:05Zdoi:10.1038/s41598-020-69004-zhttp://cds.cern.ch/record/2725333engRomanov, ArturKrkotić, PatrickTelles, GuilhermeO'Callaghan, JoanPont, MontsePerez, FrancisGranados, XavierCalatroni, SergioPuig, TeresaGutierrez, JoffreHigh frequency response of thick REBCO coated conductors in the framework of the FCC studyAccelerators and Storage RingsA thorough microwave response study of high temperature superconductors, considered as an alternative beam screen coating, has become integral in the design decisions for CERN’s future research infrastructure. Here, we present the surface resistance $R_{s}$ of various $\text {REBa}_{2}\text {Cu}_{3}\text {O}_{7-x}$ (RE = rare earth) coated conductors available in large scale as a function of magnetic field in a broad temperature range measured by a Hakki–Coleman type resonator with resonant frequency $\nu \approx {8}\,{\text {GHz}}$. Analysis of the high frequency dissipation supported by DC transport characterization reveals the vortex dynamics in thick $\text {REBa}_{2}\text {Cu}_{3}\text {O}_{7-x}$ films. Determined microscopic vortex parameters span over a wide range of magnitudes and reflect the relevance of the superconducting layer’s microstructure. We demonstrate that the depinning frequencies $\nu _0$ surpass $\nu$, which confirms the operation in high performing, low dissipation pinning regime at measurement conditions. Surface impedance extrapolation to FCC-hh conditions points towards a significant outperformance of copper by coated conductors in terms of surface resistance. The surface resistance margins would open up potential ways for a more efficient frontier circular collider.oai:inspirehep.net:18088432020 |
spellingShingle | Accelerators and Storage Rings Romanov, Artur Krkotić, Patrick Telles, Guilherme O'Callaghan, Joan Pont, Montse Perez, Francis Granados, Xavier Calatroni, Sergio Puig, Teresa Gutierrez, Joffre High frequency response of thick REBCO coated conductors in the framework of the FCC study |
title | High frequency response of thick REBCO coated conductors in the framework of the FCC study |
title_full | High frequency response of thick REBCO coated conductors in the framework of the FCC study |
title_fullStr | High frequency response of thick REBCO coated conductors in the framework of the FCC study |
title_full_unstemmed | High frequency response of thick REBCO coated conductors in the framework of the FCC study |
title_short | High frequency response of thick REBCO coated conductors in the framework of the FCC study |
title_sort | high frequency response of thick rebco coated conductors in the framework of the fcc study |
topic | Accelerators and Storage Rings |
url | https://dx.doi.org/10.1038/s41598-020-69004-z http://cds.cern.ch/record/2725333 |
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