Coated conductor technology for the beamscreen chamber of future high energy circular colliders

The surface resistance of state-of-the-art REBa2Cu3O7-x coated conductors has been measured at 8 GHz versus temperature and magnetic field. We show that the surface resistance of REBa2Cu3O7-x strongly depends on the microstructure of the material. We have compared our results to those determined by...

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Autores: Puig Molina, Teresa, Krkotic, Patrick|||0000-0003-1892-0350, Romanov, Artur, O'Callaghan Castellà, Juan Manuel|||0000-0002-2740-0202, Gutiérrez Royo, Joffre
Formato: artículo
Fecha de publicación:2019
País:España
Recursos:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/170731
Acesso em linha:https://hdl.handle.net/2117/170731
https://dx.doi.org/10.1088/1361-6668/ab2e66
Access Level:acceso abierto
Palavra-chave:High temperature superconductors
Coated conductors
Surface resistance
Future circular collider
Superconductors d'alta temperatura
Àrees temàtiques de la UPC::Enginyeria electrònica
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spelling Coated conductor technology for the beamscreen chamber of future high energy circular collidersPuig Molina, TeresaKrkotic, Patrick|||0000-0003-1892-0350Romanov, ArturO'Callaghan Castellà, Juan Manuel|||0000-0002-2740-0202Gutiérrez Royo, JoffreHigh temperature superconductorsCoated conductorsSurface resistanceFuture circular colliderHigh temperature superconductorsSuperconductors d'alta temperaturaÀrees temàtiques de la UPC::Enginyeria electrònicaThe surface resistance of state-of-the-art REBa2Cu3O7-x coated conductors has been measured at 8 GHz versus temperature and magnetic field. We show that the surface resistance of REBa2Cu3O7-x strongly depends on the microstructure of the material. We have compared our results to those determined by the rigid fluxon model. The model gives a very good qualitative description of our data, opening the door to unravel the effect of material microstructure and vortex interactions on the surface resistance of high temperature superconductors. Moreover, it provides a powerful tool to design the best coated conductor architecture that minimizes the in-field surface resistance. We have found that the surface resistance of REBa2Cu3O7-x at 50 K and up to 9 T is lower than that of copper. This fact poses coated conductors as strong candidate to substitute copper as a beamscreen coating in CERN's future circular collider. To this end we have also analyzed the secondary electron yield (SEY) of REBa2Cu3O7-x and found a compatible coating made of sputtered Ti and amorphous carbon that decreases the SEY close to unity, a mandatory requirement for the beamscreen chamber of a circular collider in order to prevent the electron-cloud phenomenon.Peer Reviewed20192019-09-0120192019-10-23journal articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/170731https://dx.doi.org/10.1088/1361-6668/ab2e66reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/1707312026-05-27T15:37:01Z
dc.title.none.fl_str_mv Coated conductor technology for the beamscreen chamber of future high energy circular colliders
title Coated conductor technology for the beamscreen chamber of future high energy circular colliders
spellingShingle Coated conductor technology for the beamscreen chamber of future high energy circular colliders
Puig Molina, Teresa
High temperature superconductors
Coated conductors
Surface resistance
Future circular collider
High temperature superconductors
Superconductors d'alta temperatura
Àrees temàtiques de la UPC::Enginyeria electrònica
title_short Coated conductor technology for the beamscreen chamber of future high energy circular colliders
title_full Coated conductor technology for the beamscreen chamber of future high energy circular colliders
title_fullStr Coated conductor technology for the beamscreen chamber of future high energy circular colliders
title_full_unstemmed Coated conductor technology for the beamscreen chamber of future high energy circular colliders
title_sort Coated conductor technology for the beamscreen chamber of future high energy circular colliders
dc.creator.none.fl_str_mv Puig Molina, Teresa
Krkotic, Patrick|||0000-0003-1892-0350
Romanov, Artur
O'Callaghan Castellà, Juan Manuel|||0000-0002-2740-0202
Gutiérrez Royo, Joffre
author Puig Molina, Teresa
author_facet Puig Molina, Teresa
Krkotic, Patrick|||0000-0003-1892-0350
Romanov, Artur
O'Callaghan Castellà, Juan Manuel|||0000-0002-2740-0202
Gutiérrez Royo, Joffre
author_role author
author2 Krkotic, Patrick|||0000-0003-1892-0350
Romanov, Artur
O'Callaghan Castellà, Juan Manuel|||0000-0002-2740-0202
Gutiérrez Royo, Joffre
author2_role author
author
author
author
dc.subject.none.fl_str_mv High temperature superconductors
Coated conductors
Surface resistance
Future circular collider
High temperature superconductors
Superconductors d'alta temperatura
Àrees temàtiques de la UPC::Enginyeria electrònica
topic High temperature superconductors
Coated conductors
Surface resistance
Future circular collider
High temperature superconductors
Superconductors d'alta temperatura
Àrees temàtiques de la UPC::Enginyeria electrònica
description The surface resistance of state-of-the-art REBa2Cu3O7-x coated conductors has been measured at 8 GHz versus temperature and magnetic field. We show that the surface resistance of REBa2Cu3O7-x strongly depends on the microstructure of the material. We have compared our results to those determined by the rigid fluxon model. The model gives a very good qualitative description of our data, opening the door to unravel the effect of material microstructure and vortex interactions on the surface resistance of high temperature superconductors. Moreover, it provides a powerful tool to design the best coated conductor architecture that minimizes the in-field surface resistance. We have found that the surface resistance of REBa2Cu3O7-x at 50 K and up to 9 T is lower than that of copper. This fact poses coated conductors as strong candidate to substitute copper as a beamscreen coating in CERN's future circular collider. To this end we have also analyzed the secondary electron yield (SEY) of REBa2Cu3O7-x and found a compatible coating made of sputtered Ti and amorphous carbon that decreases the SEY close to unity, a mandatory requirement for the beamscreen chamber of a circular collider in order to prevent the electron-cloud phenomenon.
publishDate 2019
dc.date.none.fl_str_mv 2019
2019-09-01
2019
2019-10-23
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/170731
https://dx.doi.org/10.1088/1361-6668/ab2e66
url https://hdl.handle.net/2117/170731
https://dx.doi.org/10.1088/1361-6668/ab2e66
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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