Dynamic Effects on Chromaticity for the LHC beam cycle in the SPS

During the energy ramp of the SPS the chromaticity is subject to significant dynamic effects. Sextupolar field errors due to eddy currents and remanent fields lead to beam momentum and ramp rate dependent corrections. Detailled measurements on the LHC beam cycle have been used to verify the modellin...

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Detalles Bibliográficos
Autor principal: Wenninger, J
Lenguaje:eng
Publicado: 2003
Materias:
Accelerators and Storage Rings
Acceso en línea:http://cds.cern.ch/record/702722
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author Wenninger, J
author_facet Wenninger, J
author_sort Wenninger, J
collection CERN
description During the energy ramp of the SPS the chromaticity is subject to significant dynamic effects. Sextupolar field errors due to eddy currents and remanent fields lead to beam momentum and ramp rate dependent corrections. Detailled measurements on the LHC beam cycle have been used to verify the modelling and reproducibility the chromaticity corrections. Large deviations were found between the presently used model and the measured chromaticity trims. An improved empirical model is suggested.
id cern-702722
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2003
record_format invenio
spelling cern-7027222023-05-11T12:03:36Zhttp://cds.cern.ch/record/702722engWenninger, JDynamic Effects on Chromaticity for the LHC beam cycle in the SPSAccelerators and Storage RingsDuring the energy ramp of the SPS the chromaticity is subject to significant dynamic effects. Sextupolar field errors due to eddy currents and remanent fields lead to beam momentum and ramp rate dependent corrections. Detailled measurements on the LHC beam cycle have been used to verify the modelling and reproducibility the chromaticity corrections. Large deviations were found between the presently used model and the measured chromaticity trims. An improved empirical model is suggested.SL-Note-2002-041-OPoai:cds.cern.ch:7027222003-02-10
spellingShingle Accelerators and Storage Rings
Wenninger, J
Dynamic Effects on Chromaticity for the LHC beam cycle in the SPS
title Dynamic Effects on Chromaticity for the LHC beam cycle in the SPS
title_full Dynamic Effects on Chromaticity for the LHC beam cycle in the SPS
title_fullStr Dynamic Effects on Chromaticity for the LHC beam cycle in the SPS
title_full_unstemmed Dynamic Effects on Chromaticity for the LHC beam cycle in the SPS
title_short Dynamic Effects on Chromaticity for the LHC beam cycle in the SPS
title_sort dynamic effects on chromaticity for the lhc beam cycle in the sps
topic Accelerators and Storage Rings
url http://cds.cern.ch/record/702722
work_keys_str_mv AT wenningerj dynamiceffectsonchromaticityforthelhcbeamcycleinthesps

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