BPM Tolerances for HL-LHC Orbit Correction in the Inner Triplet Area

For the HL-LHC beam spot sizes as small as 7 mum are considered for the high luminosity insertions IR1 and IR5. In addition, the luminosity has to be levelled over several hours by changing beta* resulting in constant changes of the optics and thus orbit changes. The small beam size and the continuo...

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Detalles Bibliográficos
Autores principales: Fitterer, Miriam, De Maria, R
Lenguaje:eng
Publicado: 2015
Materias:
Accelerators and Storage Rings
Acceso en línea:http://cds.cern.ch/record/2112241
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author Fitterer, Miriam
De Maria, R
author_facet Fitterer, Miriam
De Maria, R
author_sort Fitterer, Miriam
collection CERN
description For the HL-LHC beam spot sizes as small as 7 mum are considered for the high luminosity insertions IR1 and IR5. In addition, the luminosity has to be levelled over several hours by changing beta* resulting in constant changes of the optics and thus orbit changes. The small beam size and the continuous optics changes in general make the alignment of the beams at the IP challenging. In order to avoid continuous luminosity scans for the alignment of the beams at the IP, the orbit correction has to rely on the readings of the BPMs in the IT region. In this paper we review the requirements on resolution and accuracy of the BPMs and compare different options for the placement of the BPMs in the IT region
id cern-2112241
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2015
record_format invenio
spelling cern-21122412022-08-10T13:06:07Zhttp://cds.cern.ch/record/2112241engFitterer, MiriamDe Maria, RBPM Tolerances for HL-LHC Orbit Correction in the Inner Triplet AreaAccelerators and Storage RingsFor the HL-LHC beam spot sizes as small as 7 mum are considered for the high luminosity insertions IR1 and IR5. In addition, the luminosity has to be levelled over several hours by changing beta* resulting in constant changes of the optics and thus orbit changes. The small beam size and the continuous optics changes in general make the alignment of the beams at the IP challenging. In order to avoid continuous luminosity scans for the alignment of the beams at the IP, the orbit correction has to rely on the readings of the BPMs in the IT region. In this paper we review the requirements on resolution and accuracy of the BPMs and compare different options for the placement of the BPMs in the IT regionCERN-ACC-2015-0176oai:cds.cern.ch:21122412015-05-03
spellingShingle Accelerators and Storage Rings
Fitterer, Miriam
De Maria, R
BPM Tolerances for HL-LHC Orbit Correction in the Inner Triplet Area
title BPM Tolerances for HL-LHC Orbit Correction in the Inner Triplet Area
title_full BPM Tolerances for HL-LHC Orbit Correction in the Inner Triplet Area
title_fullStr BPM Tolerances for HL-LHC Orbit Correction in the Inner Triplet Area
title_full_unstemmed BPM Tolerances for HL-LHC Orbit Correction in the Inner Triplet Area
title_short BPM Tolerances for HL-LHC Orbit Correction in the Inner Triplet Area
title_sort bpm tolerances for hl-lhc orbit correction in the inner triplet area
topic Accelerators and Storage Rings
url http://cds.cern.ch/record/2112241
work_keys_str_mv AT fitterermiriam bpmtolerancesforhllhcorbitcorrectionintheinnertripletarea
AT demariar bpmtolerancesforhllhcorbitcorrectionintheinnertripletarea

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