Emittance Growth at LHC Injection from SPS and LHC Kicker Ripple

Fast pulsed kicker magnets are used to extract beams from the SPS and inject them into the LHC. The kickers exhibit time-varying structure in the pulse shape which translates into small offsets with respect to the closed orbit at LHC injection. The LHC damper systems will be used to damp out the res...

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Detalles Bibliográficos
Autores principales: Kotzian, G, Barnes, M, Ducimetière, L, Goddard, B, Höfle, Wolfgang
Lenguaje:eng
Publicado: 2008
Materias:
Accelerators and Storage Rings
Acceso en línea:http://cds.cern.ch/record/1123690
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author Kotzian, G
Barnes, M
Ducimetière, L
Goddard, B
Höfle, Wolfgang
author_facet Kotzian, G
Barnes, M
Ducimetière, L
Goddard, B
Höfle, Wolfgang
author_sort Kotzian, G
collection CERN
description Fast pulsed kicker magnets are used to extract beams from the SPS and inject them into the LHC. The kickers exhibit time-varying structure in the pulse shape which translates into small offsets with respect to the closed orbit at LHC injection. The LHC damper systems will be used to damp out the resulting betatron oscillations, to keep the growth in the transverse emittance within specification. This paper describes the results of the measurements of the kicker ripple for the two systems, both in the laboratory and with beam, and presents the simulated performance of the transverse damper in terms of beam emittance growth. The implications for LHC operation are discussed.
id cern-1123690
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2008
record_format invenio
spelling cern-11236902023-05-31T13:24:41Zhttp://cds.cern.ch/record/1123690engKotzian, GBarnes, MDucimetière, LGoddard, BHöfle, WolfgangEmittance Growth at LHC Injection from SPS and LHC Kicker RippleAccelerators and Storage RingsFast pulsed kicker magnets are used to extract beams from the SPS and inject them into the LHC. The kickers exhibit time-varying structure in the pulse shape which translates into small offsets with respect to the closed orbit at LHC injection. The LHC damper systems will be used to damp out the resulting betatron oscillations, to keep the growth in the transverse emittance within specification. This paper describes the results of the measurements of the kicker ripple for the two systems, both in the laboratory and with beam, and presents the simulated performance of the transverse damper in terms of beam emittance growth. The implications for LHC operation are discussed.LHC-PROJECT-Report-1116CERN-LHC-PROJECT-Report-1116oai:cds.cern.ch:11236902008-09-03
spellingShingle Accelerators and Storage Rings
Kotzian, G
Barnes, M
Ducimetière, L
Goddard, B
Höfle, Wolfgang
Emittance Growth at LHC Injection from SPS and LHC Kicker Ripple
title Emittance Growth at LHC Injection from SPS and LHC Kicker Ripple
title_full Emittance Growth at LHC Injection from SPS and LHC Kicker Ripple
title_fullStr Emittance Growth at LHC Injection from SPS and LHC Kicker Ripple
title_full_unstemmed Emittance Growth at LHC Injection from SPS and LHC Kicker Ripple
title_short Emittance Growth at LHC Injection from SPS and LHC Kicker Ripple
title_sort emittance growth at lhc injection from sps and lhc kicker ripple
topic Accelerators and Storage Rings
url http://cds.cern.ch/record/1123690
work_keys_str_mv AT kotziang emittancegrowthatlhcinjectionfromspsandlhckickerripple
AT barnesm emittancegrowthatlhcinjectionfromspsandlhckickerripple
AT ducimetierel emittancegrowthatlhcinjectionfromspsandlhckickerripple
AT goddardb emittancegrowthatlhcinjectionfromspsandlhckickerripple
AT hoflewolfgang emittancegrowthatlhcinjectionfromspsandlhckickerripple

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