Amorphous and Diamond-Like Carbon coatings for SEY reduction of dielectric materials for accelerating structure applications

Multipactor discharges in dielectric accelerating structures are a major limitation on the performance of this otherwise very promising technology for future high energy physics machines and other applications. Multipactor occurs when the Secondary Emission Yield (SEY) of the dielectric material use...

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Autores principales: Grudiev, Alexej, Neupert, Holger, Vollenberg, Wilhelmus, Jing, Chunguang, Poddar, Shashi, Freemire, Ben
Lenguaje:eng
Publicado: 2022
Materias:
Accelerators and Storage Rings
Acceso en línea:http://cds.cern.ch/record/2812429
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author Grudiev, Alexej
Neupert, Holger
Vollenberg, Wilhelmus
Jing, Chunguang
Poddar, Shashi
Freemire, Ben
author_facet Grudiev, Alexej
Neupert, Holger
Vollenberg, Wilhelmus
Jing, Chunguang
Poddar, Shashi
Freemire, Ben
author_sort Grudiev, Alexej
collection CERN
description Multipactor discharges in dielectric accelerating structures are a major limitation on the performance of this otherwise very promising technology for future high energy physics machines and other applications. Multipactor occurs when the Secondary Emission Yield (SEY) of the dielectric material used in accelerating structures is significantly higher than 1. In this work, SEY coefficient versus energy of primary electrons is measured for different dielectric materials used for accelerating structure applications: MgTiO3 (D16) and MgTiO-based conductive ceramic. Furthermore, effect of SEY reduction by means of amorphous Carbon (a-C) and Diamond-Like Carbon (DLC) coatings is investigated experimentally. The results are presented and discussed.
id cern-2812429
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2022
record_format invenio
spelling cern-28124292023-07-20T15:02:45Zhttp://cds.cern.ch/record/2812429engGrudiev, AlexejNeupert, HolgerVollenberg, WilhelmusJing, ChunguangPoddar, ShashiFreemire, BenAmorphous and Diamond-Like Carbon coatings for SEY reduction of dielectric materials for accelerating structure applicationsAccelerators and Storage RingsMultipactor discharges in dielectric accelerating structures are a major limitation on the performance of this otherwise very promising technology for future high energy physics machines and other applications. Multipactor occurs when the Secondary Emission Yield (SEY) of the dielectric material used in accelerating structures is significantly higher than 1. In this work, SEY coefficient versus energy of primary electrons is measured for different dielectric materials used for accelerating structure applications: MgTiO3 (D16) and MgTiO-based conductive ceramic. Furthermore, effect of SEY reduction by means of amorphous Carbon (a-C) and Diamond-Like Carbon (DLC) coatings is investigated experimentally. The results are presented and discussed.CERN-ACC-2022-0006CLIC-Note-1175oai:cds.cern.ch:28124292022-05-06
spellingShingle Accelerators and Storage Rings
Grudiev, Alexej
Neupert, Holger
Vollenberg, Wilhelmus
Jing, Chunguang
Poddar, Shashi
Freemire, Ben
Amorphous and Diamond-Like Carbon coatings for SEY reduction of dielectric materials for accelerating structure applications
title Amorphous and Diamond-Like Carbon coatings for SEY reduction of dielectric materials for accelerating structure applications
title_full Amorphous and Diamond-Like Carbon coatings for SEY reduction of dielectric materials for accelerating structure applications
title_fullStr Amorphous and Diamond-Like Carbon coatings for SEY reduction of dielectric materials for accelerating structure applications
title_full_unstemmed Amorphous and Diamond-Like Carbon coatings for SEY reduction of dielectric materials for accelerating structure applications
title_short Amorphous and Diamond-Like Carbon coatings for SEY reduction of dielectric materials for accelerating structure applications
title_sort amorphous and diamond-like carbon coatings for sey reduction of dielectric materials for accelerating structure applications
topic Accelerators and Storage Rings
url http://cds.cern.ch/record/2812429
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AT neupertholger amorphousanddiamondlikecarboncoatingsforseyreductionofdielectricmaterialsforacceleratingstructureapplications
AT vollenbergwilhelmus amorphousanddiamondlikecarboncoatingsforseyreductionofdielectricmaterialsforacceleratingstructureapplications
AT jingchunguang amorphousanddiamondlikecarboncoatingsforseyreductionofdielectricmaterialsforacceleratingstructureapplications
AT poddarshashi amorphousanddiamondlikecarboncoatingsforseyreductionofdielectricmaterialsforacceleratingstructureapplications
AT freemireben amorphousanddiamondlikecarboncoatingsforseyreductionofdielectricmaterialsforacceleratingstructureapplications

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