DC Breakdown Experiments with Iridium Cathode

Electrical breakdown occurring in rf accelerating structures is one of the major disruptions of the accelerated beam in CLIC. At CERN, as complements to rf facilities, DC-spark systems have been used to study breakdown properties of many candidate materials for making rf components. In this note, me...

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Autores principales: Profatilova, Iaroslava, Calatroni, Sergio, Korsback, Anders, Muranaka, Tomoko, Wuensch, Walter
Lenguaje:eng
Publicado: 2015
Materias:
Accelerators and Storage Rings
Acceso en línea:http://cds.cern.ch/record/2027807
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author Profatilova, Iaroslava
Calatroni, Sergio
Korsback, Anders
Muranaka, Tomoko
Wuensch, Walter
author_facet Profatilova, Iaroslava
Calatroni, Sergio
Korsback, Anders
Muranaka, Tomoko
Wuensch, Walter
author_sort Profatilova, Iaroslava
collection CERN
description Electrical breakdown occurring in rf accelerating structures is one of the major disruptions of the accelerated beam in CLIC. At CERN, as complements to rf facilities, DC-spark systems have been used to study breakdown properties of many candidate materials for making rf components. In this note, measurements of conditioning speed, breakdown field and field enhancement factor of iridium are presented comparing with previously tested materials. The average breakdown field after conditioning reached 238 MV/m, which places iridium next to copper. By comparison with results and properties of other metals, the low breakdown field of iridium could be explained by its face-centred-cubic crystal structure.
id cern-2027807
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2015
record_format invenio
spelling cern-20278072023-07-20T15:06:38Zhttp://cds.cern.ch/record/2027807engProfatilova, IaroslavaCalatroni, SergioKorsback, AndersMuranaka, TomokoWuensch, WalterDC Breakdown Experiments with Iridium CathodeAccelerators and Storage RingsElectrical breakdown occurring in rf accelerating structures is one of the major disruptions of the accelerated beam in CLIC. At CERN, as complements to rf facilities, DC-spark systems have been used to study breakdown properties of many candidate materials for making rf components. In this note, measurements of conditioning speed, breakdown field and field enhancement factor of iridium are presented comparing with previously tested materials. The average breakdown field after conditioning reached 238 MV/m, which places iridium next to copper. By comparison with results and properties of other metals, the low breakdown field of iridium could be explained by its face-centred-cubic crystal structure.CERN-ACC-2015-0061CLIC-Note-1052oai:cds.cern.ch:20278072015-06-08
spellingShingle Accelerators and Storage Rings
Profatilova, Iaroslava
Calatroni, Sergio
Korsback, Anders
Muranaka, Tomoko
Wuensch, Walter
DC Breakdown Experiments with Iridium Cathode
title DC Breakdown Experiments with Iridium Cathode
title_full DC Breakdown Experiments with Iridium Cathode
title_fullStr DC Breakdown Experiments with Iridium Cathode
title_full_unstemmed DC Breakdown Experiments with Iridium Cathode
title_short DC Breakdown Experiments with Iridium Cathode
title_sort dc breakdown experiments with iridium cathode
topic Accelerators and Storage Rings
url http://cds.cern.ch/record/2027807
work_keys_str_mv AT profatilovaiaroslava dcbreakdownexperimentswithiridiumcathode
AT calatronisergio dcbreakdownexperimentswithiridiumcathode
AT korsbackanders dcbreakdownexperimentswithiridiumcathode
AT muranakatomoko dcbreakdownexperimentswithiridiumcathode
AT wuenschwalter dcbreakdownexperimentswithiridiumcathode

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