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A Novel Technique for Mitigating Multipactor by Means of Magnetic Surface Roughness
Multipactor phenomena which are closely linked to the SEY (secondary electron yield)can be mitigated by many different methods including groves in the metal surface as well as using electric or magnetic bias fields. However frequently the application of global magnetic or electric bias field is not...
Autores principales: | , , , , , , , , |
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Lenguaje: | eng |
Publicado: |
2009
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Materias: | |
Acceso en línea: | http://cds.cern.ch/record/1212997 |
_version_ | 1780918050525020160 |
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author | Caspers, Friedhelm Montesinos, E Boria, V E Bruns, W Galan, L Gimeno, B Montero, I Raboso, D Vicente, C |
author_facet | Caspers, Friedhelm Montesinos, E Boria, V E Bruns, W Galan, L Gimeno, B Montero, I Raboso, D Vicente, C |
author_sort | Caspers, Friedhelm |
collection | CERN |
description | Multipactor phenomena which are closely linked to the SEY (secondary electron yield)can be mitigated by many different methods including groves in the metal surface as well as using electric or magnetic bias fields. However frequently the application of global magnetic or electric bias field is not practicable considering the weight and power limitations on-board satellites. Additionally, surface grooves may degrade the RF performance. Here we present a novel technique which is based on a magnetostatic field pattern on the metallic surface with fast spatial modulation in the order of 30 micron. This field pattern is produced by proper magnetization of an underlying ferromagnetic layer such as nickel. Simulations and preliminary experimental results will be shown and a number of applications, both for particle accelerators and satellite microwave payloads are discussed. |
id | cern-1212997 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2009 |
record_format | invenio |
spelling | cern-12129972019-09-30T06:29:59Zhttp://cds.cern.ch/record/1212997engCaspers, FriedhelmMontesinos, EBoria, V EBruns, WGalan, LGimeno, BMontero, IRaboso, DVicente, CA Novel Technique for Mitigating Multipactor by Means of Magnetic Surface RoughnessAccelerators and Storage RingsMultipactor phenomena which are closely linked to the SEY (secondary electron yield)can be mitigated by many different methods including groves in the metal surface as well as using electric or magnetic bias fields. However frequently the application of global magnetic or electric bias field is not practicable considering the weight and power limitations on-board satellites. Additionally, surface grooves may degrade the RF performance. Here we present a novel technique which is based on a magnetostatic field pattern on the metallic surface with fast spatial modulation in the order of 30 micron. This field pattern is produced by proper magnetization of an underlying ferromagnetic layer such as nickel. Simulations and preliminary experimental results will be shown and a number of applications, both for particle accelerators and satellite microwave payloads are discussed.CERN-ATS-2009-089oai:cds.cern.ch:12129972009-05-04 |
spellingShingle | Accelerators and Storage Rings Caspers, Friedhelm Montesinos, E Boria, V E Bruns, W Galan, L Gimeno, B Montero, I Raboso, D Vicente, C A Novel Technique for Mitigating Multipactor by Means of Magnetic Surface Roughness |
title | A Novel Technique for Mitigating Multipactor by Means of Magnetic Surface Roughness |
title_full | A Novel Technique for Mitigating Multipactor by Means of Magnetic Surface Roughness |
title_fullStr | A Novel Technique for Mitigating Multipactor by Means of Magnetic Surface Roughness |
title_full_unstemmed | A Novel Technique for Mitigating Multipactor by Means of Magnetic Surface Roughness |
title_short | A Novel Technique for Mitigating Multipactor by Means of Magnetic Surface Roughness |
title_sort | novel technique for mitigating multipactor by means of magnetic surface roughness |
topic | Accelerators and Storage Rings |
url | http://cds.cern.ch/record/1212997 |
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