Transverse Behaviour of the LHC Proton Beam in the SPS: an Update

During the 1999 SPS run, strong transverse instabilities were observed with the LHC beam [1]. Both the instability characteristics and the identical threshold current as for beam-induced electron multipacting led to consider the interaction of the beam with the electron cloud as a likely source. In...

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Detalles Bibliográficos
Autores principales: Arduini, Gianluigi, Cornelis, Karel, Höfle, Wolfgang, Rumolo, Giovanni, Zimmermann, Frank
Lenguaje:eng
Publicado: 2001
Materias:
Accelerators and Storage Rings
Acceso en línea:http://cds.cern.ch/record/514407
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author Arduini, Gianluigi
Cornelis, Karel
Höfle, Wolfgang
Rumolo, Giovanni
Zimmermann, Frank
author_facet Arduini, Gianluigi
Cornelis, Karel
Höfle, Wolfgang
Rumolo, Giovanni
Zimmermann, Frank
author_sort Arduini, Gianluigi
collection CERN
description During the 1999 SPS run, strong transverse instabilities were observed with the LHC beam [1]. Both the instability characteristics and the identical threshold current as for beam-induced electron multipacting led to consider the interaction of the beam with the electron cloud as a likely source. In 2000, we have measured the dependence of beam motion, beam loss, and emittance growth on bunch intensity, number of bunches, octupole strength, chromaticity, and gaps in the bunch train. We report on these recent studies and compare the beam observations with simulations of electron cloud build up and electron-induced single-bunch instabilities.
id cern-514407
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2001
record_format invenio
spelling cern-5144072023-05-05T13:08:08Zhttp://cds.cern.ch/record/514407engArduini, GianluigiCornelis, KarelHöfle, WolfgangRumolo, GiovanniZimmermann, FrankTransverse Behaviour of the LHC Proton Beam in the SPS: an UpdateAccelerators and Storage RingsDuring the 1999 SPS run, strong transverse instabilities were observed with the LHC beam [1]. Both the instability characteristics and the identical threshold current as for beam-induced electron multipacting led to consider the interaction of the beam with the electron cloud as a likely source. In 2000, we have measured the dependence of beam motion, beam loss, and emittance growth on bunch intensity, number of bunches, octupole strength, chromaticity, and gaps in the bunch train. We report on these recent studies and compare the beam observations with simulations of electron cloud build up and electron-induced single-bunch instabilities.CERN-SL-2001-050-OPoai:cds.cern.ch:5144072001-06-25
spellingShingle Accelerators and Storage Rings
Arduini, Gianluigi
Cornelis, Karel
Höfle, Wolfgang
Rumolo, Giovanni
Zimmermann, Frank
Transverse Behaviour of the LHC Proton Beam in the SPS: an Update
title Transverse Behaviour of the LHC Proton Beam in the SPS: an Update
title_full Transverse Behaviour of the LHC Proton Beam in the SPS: an Update
title_fullStr Transverse Behaviour of the LHC Proton Beam in the SPS: an Update
title_full_unstemmed Transverse Behaviour of the LHC Proton Beam in the SPS: an Update
title_short Transverse Behaviour of the LHC Proton Beam in the SPS: an Update
title_sort transverse behaviour of the lhc proton beam in the sps: an update
topic Accelerators and Storage Rings
url http://cds.cern.ch/record/514407
work_keys_str_mv AT arduinigianluigi transversebehaviourofthelhcprotonbeaminthespsanupdate
AT corneliskarel transversebehaviourofthelhcprotonbeaminthespsanupdate
AT hoflewolfgang transversebehaviourofthelhcprotonbeaminthespsanupdate
AT rumologiovanni transversebehaviourofthelhcprotonbeaminthespsanupdate
AT zimmermannfrank transversebehaviourofthelhcprotonbeaminthespsanupdate

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