Optics considerations for lowering transition energy in the SPS

Beam stability for high intensity LHC beams in the SPS can be improved by increasing the slippage factor, i.e. reducing the transition energy. In this paper, possible ways of modifying the optics of the SPS for lower transition energy are reviewed. In particular, a threefold increase of the slippage...

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Detalles Bibliográficos
Autores principales: Bartosik, H, Arduini, G, Papaphilippou, Y
Lenguaje:eng
Publicado: 2011
Materias:
Accelerators and Storage Rings
Acceso en línea:http://cds.cern.ch/record/1381216
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author Bartosik, H
Arduini, G
Papaphilippou, Y
author_facet Bartosik, H
Arduini, G
Papaphilippou, Y
author_sort Bartosik, H
collection CERN
description Beam stability for high intensity LHC beams in the SPS can be improved by increasing the slippage factor, i.e. reducing the transition energy. In this paper, possible ways of modifying the optics of the SPS for lower transition energy are reviewed. In particular, a threefold increase of the slippage factor at injection can be achieved by decreasing the integer part of the tunes by 6 units. The properties of this new low-transition optics are compared with the nominal SPS optics, including working point and resonance behavior. Possible limitations are discussed.
id cern-1381216
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2011
record_format invenio
spelling cern-13812162022-08-17T13:30:59Zhttp://cds.cern.ch/record/1381216engBartosik, HArduini, GPapaphilippou, YOptics considerations for lowering transition energy in the SPSAccelerators and Storage RingsBeam stability for high intensity LHC beams in the SPS can be improved by increasing the slippage factor, i.e. reducing the transition energy. In this paper, possible ways of modifying the optics of the SPS for lower transition energy are reviewed. In particular, a threefold increase of the slippage factor at injection can be achieved by decreasing the integer part of the tunes by 6 units. The properties of this new low-transition optics are compared with the nominal SPS optics, including working point and resonance behavior. Possible limitations are discussed.CERN-ATS-2011-088oai:cds.cern.ch:13812162011-09-12
spellingShingle Accelerators and Storage Rings
Bartosik, H
Arduini, G
Papaphilippou, Y
Optics considerations for lowering transition energy in the SPS
title Optics considerations for lowering transition energy in the SPS
title_full Optics considerations for lowering transition energy in the SPS
title_fullStr Optics considerations for lowering transition energy in the SPS
title_full_unstemmed Optics considerations for lowering transition energy in the SPS
title_short Optics considerations for lowering transition energy in the SPS
title_sort optics considerations for lowering transition energy in the sps
topic Accelerators and Storage Rings
url http://cds.cern.ch/record/1381216
work_keys_str_mv AT bartosikh opticsconsiderationsforloweringtransitionenergyinthesps
AT arduinig opticsconsiderationsforloweringtransitionenergyinthesps
AT papaphilippouy opticsconsiderationsforloweringtransitionenergyinthesps

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