Overview of LEP operation in 1998

After the installation of 32 additional RF cavities in the 1997-1998 shutdown LEP was operated at a beam energy of 94.5 GeV. The total integrated luminosity for the year 1998 clearly surpassed its target and reached 198 pb-1. Vertical beam-beam tuneshiftsof more than 0.07 were obtained. The performa...

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Detalles Bibliográficos
Autores principales: Arduini, Gianluigi, Assmann, R W, Bailey, R, Burkhardt, H, Butterworth, A, Collier, Paul, Cornelis, Karel, Faugier, A, Jonker, M, Lamont, M, Meddahi, Malika, Morpurgo, G, Raimondi, Pantaleo, Roy, G, Uythoven, J, Wenninger, J
Lenguaje:eng
Publicado: 1999
Materias:
Accelerators and Storage Rings
Acceso en línea:http://cds.cern.ch/record/387151
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author Arduini, Gianluigi
Assmann, R W
Bailey, R
Burkhardt, H
Butterworth, A
Collier, Paul
Cornelis, Karel
Faugier, A
Jonker, M
Lamont, M
Meddahi, Malika
Morpurgo, G
Raimondi, Pantaleo
Roy, G
Uythoven, J
Wenninger, J
author_facet Arduini, Gianluigi
Assmann, R W
Bailey, R
Burkhardt, H
Butterworth, A
Collier, Paul
Cornelis, Karel
Faugier, A
Jonker, M
Lamont, M
Meddahi, Malika
Morpurgo, G
Raimondi, Pantaleo
Roy, G
Uythoven, J
Wenninger, J
author_sort Arduini, Gianluigi
collection CERN
description After the installation of 32 additional RF cavities in the 1997-1998 shutdown LEP was operated at a beam energy of 94.5 GeV. The total integrated luminosity for the year 1998 clearly surpassed its target and reached 198 pb-1. Vertical beam-beam tuneshiftsof more than 0.07 were obtained. The performance did not seem to be beam-beam limited, but the total beam current was limited by power dissipation problems to around 6 mA. A high phase advance optics (102o, 90o), with a smaller natural emittance, was used for regular operation in 1998. This contributed to the excellent performance of LEP, together with the further reduction of both the horizontal and vertical beta function at the interaction points. No dynamic aperture problems were encountered.
id cern-387151
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1999
record_format invenio
spelling cern-3871512023-05-05T13:07:35Zhttp://cds.cern.ch/record/387151engArduini, GianluigiAssmann, R WBailey, RBurkhardt, HButterworth, ACollier, PaulCornelis, KarelFaugier, AJonker, MLamont, MMeddahi, MalikaMorpurgo, GRaimondi, PantaleoRoy, GUythoven, JWenninger, JOverview of LEP operation in 1998Accelerators and Storage RingsAfter the installation of 32 additional RF cavities in the 1997-1998 shutdown LEP was operated at a beam energy of 94.5 GeV. The total integrated luminosity for the year 1998 clearly surpassed its target and reached 198 pb-1. Vertical beam-beam tuneshiftsof more than 0.07 were obtained. The performance did not seem to be beam-beam limited, but the total beam current was limited by power dissipation problems to around 6 mA. A high phase advance optics (102o, 90o), with a smaller natural emittance, was used for regular operation in 1998. This contributed to the excellent performance of LEP, together with the further reduction of both the horizontal and vertical beta function at the interaction points. No dynamic aperture problems were encountered.CERN-SL-99-017-BToai:cds.cern.ch:3871511999
spellingShingle Accelerators and Storage Rings
Arduini, Gianluigi
Assmann, R W
Bailey, R
Burkhardt, H
Butterworth, A
Collier, Paul
Cornelis, Karel
Faugier, A
Jonker, M
Lamont, M
Meddahi, Malika
Morpurgo, G
Raimondi, Pantaleo
Roy, G
Uythoven, J
Wenninger, J
Overview of LEP operation in 1998
title Overview of LEP operation in 1998
title_full Overview of LEP operation in 1998
title_fullStr Overview of LEP operation in 1998
title_full_unstemmed Overview of LEP operation in 1998
title_short Overview of LEP operation in 1998
title_sort overview of lep operation in 1998
topic Accelerators and Storage Rings
url http://cds.cern.ch/record/387151
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