RF Characterization of Niobium Films for Superconducting Cavities

The surface resistance RS of superconductors shows a complex dependence on the external parameters such as temperature, frequency or radio-frequency (RF) field. The Quadrupole Resonator modes of 400, 800 and 1200 MHz allow measurements at actual operating frequencies of superconducting cavities. Nio...

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Detalles Bibliográficos
Autores principales: Aull† , S, Calatroni, S, Doebert, S, Junginger, T, Ehiasarian, AP, Knobloch, J, Terenziani, G
Lenguaje:eng
Publicado: 2013
Materias:
Accelerators and Storage Rings
Acceso en línea:http://cds.cern.ch/record/1595478
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author Aull† , S
Calatroni, S
Doebert, S
Junginger, T
Ehiasarian, AP
Knobloch, J
Terenziani, G
author_facet Aull† , S
Calatroni, S
Doebert, S
Junginger, T
Ehiasarian, AP
Knobloch, J
Terenziani, G
author_sort Aull† , S
collection CERN
description The surface resistance RS of superconductors shows a complex dependence on the external parameters such as temperature, frequency or radio-frequency (RF) field. The Quadrupole Resonator modes of 400, 800 and 1200 MHz allow measurements at actual operating frequencies of superconducting cavities. Niobium films on copper substrates have several advantages over bulk niobium cavities. HIPIMS (High-power impulse magnetron sputtering) is a promising technique to increase the quality and therefore the performance of niobium films. This contribution will introduce CERNs recently developed HIPIMS coating apparatus. Moreover, first results of niobium coated copper samples will be presented, revealing the dominant loss mechanisms.
id cern-1595478
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2013
record_format invenio
spelling cern-15954782019-09-30T06:29:59Zhttp://cds.cern.ch/record/1595478engAull† , SCalatroni, SDoebert, SJunginger, TEhiasarian, APKnobloch, JTerenziani, GRF Characterization of Niobium Films for Superconducting CavitiesAccelerators and Storage RingsThe surface resistance RS of superconductors shows a complex dependence on the external parameters such as temperature, frequency or radio-frequency (RF) field. The Quadrupole Resonator modes of 400, 800 and 1200 MHz allow measurements at actual operating frequencies of superconducting cavities. Niobium films on copper substrates have several advantages over bulk niobium cavities. HIPIMS (High-power impulse magnetron sputtering) is a promising technique to increase the quality and therefore the performance of niobium films. This contribution will introduce CERNs recently developed HIPIMS coating apparatus. Moreover, first results of niobium coated copper samples will be presented, revealing the dominant loss mechanisms.CERN-ACC-2013-0190oai:cds.cern.ch:15954782013-05-12
spellingShingle Accelerators and Storage Rings
Aull† , S
Calatroni, S
Doebert, S
Junginger, T
Ehiasarian, AP
Knobloch, J
Terenziani, G
RF Characterization of Niobium Films for Superconducting Cavities
title RF Characterization of Niobium Films for Superconducting Cavities
title_full RF Characterization of Niobium Films for Superconducting Cavities
title_fullStr RF Characterization of Niobium Films for Superconducting Cavities
title_full_unstemmed RF Characterization of Niobium Films for Superconducting Cavities
title_short RF Characterization of Niobium Films for Superconducting Cavities
title_sort rf characterization of niobium films for superconducting cavities
topic Accelerators and Storage Rings
url http://cds.cern.ch/record/1595478
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AT ehiasarianap rfcharacterizationofniobiumfilmsforsuperconductingcavities
AT knoblochj rfcharacterizationofniobiumfilmsforsuperconductingcavities
AT terenzianig rfcharacterizationofniobiumfilmsforsuperconductingcavities

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