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Experimental Study of the Electron Cloud Instability at the CERN SPS

The electron cloud instability limits the performance of many existing proton and positron rings. A simulation study carried out with the HEADTAIL code revealed that the threshold for its onset decreases with increasing beam energy, if the 6D emittance of the bunch is kept constant and the longitudi...

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Autores principales: Rumolo, G, Arduini, Gianluigi, Benedetto, E, Calaga, R, Métral, E, Papotti, G, Salvant, B, Shaposhnikova, E
Lenguaje:eng
Publicado: 2008
Materias:
Acceso en línea:http://cds.cern.ch/record/1122950
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author Rumolo, G
Arduini, Gianluigi
Benedetto, E
Calaga, R
Métral, E
Papotti, G
Salvant, B
Shaposhnikova, E
author_facet Rumolo, G
Arduini, Gianluigi
Benedetto, E
Calaga, R
Métral, E
Papotti, G
Salvant, B
Shaposhnikova, E
author_sort Rumolo, G
collection CERN
description The electron cloud instability limits the performance of many existing proton and positron rings. A simulation study carried out with the HEADTAIL code revealed that the threshold for its onset decreases with increasing beam energy, if the 6D emittance of the bunch is kept constant and the longitudinal matching to the bucket is preserved. Experiments have been carried out at the CERN-SPS to study the dependence of the vertical electron cloud instability on the energy and on the beam size. The reduction of the physical transverse emittance as a function of energy is considered in fact to be the main reason for the unusual dependence of this instability on energy.
id cern-1122950
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2008
record_format invenio
spelling cern-11229502022-08-17T13:35:03Zhttp://cds.cern.ch/record/1122950engRumolo, GArduini, GianluigiBenedetto, ECalaga, RMétral, EPapotti, GSalvant, BShaposhnikova, EExperimental Study of the Electron Cloud Instability at the CERN SPSAccelerators and Storage RingsThe electron cloud instability limits the performance of many existing proton and positron rings. A simulation study carried out with the HEADTAIL code revealed that the threshold for its onset decreases with increasing beam energy, if the 6D emittance of the bunch is kept constant and the longitudinal matching to the bucket is preserved. Experiments have been carried out at the CERN-SPS to study the dependence of the vertical electron cloud instability on the energy and on the beam size. The reduction of the physical transverse emittance as a function of energy is considered in fact to be the main reason for the unusual dependence of this instability on energy.CERN-AB-2008-019oai:cds.cern.ch:11229502008-08-29
spellingShingle Accelerators and Storage Rings
Rumolo, G
Arduini, Gianluigi
Benedetto, E
Calaga, R
Métral, E
Papotti, G
Salvant, B
Shaposhnikova, E
Experimental Study of the Electron Cloud Instability at the CERN SPS
title Experimental Study of the Electron Cloud Instability at the CERN SPS
title_full Experimental Study of the Electron Cloud Instability at the CERN SPS
title_fullStr Experimental Study of the Electron Cloud Instability at the CERN SPS
title_full_unstemmed Experimental Study of the Electron Cloud Instability at the CERN SPS
title_short Experimental Study of the Electron Cloud Instability at the CERN SPS
title_sort experimental study of the electron cloud instability at the cern sps
topic Accelerators and Storage Rings
url http://cds.cern.ch/record/1122950
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