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RF multipoles deliverable

The crab cavities to be installed in the High-Luminosity LHC (HL-LHC) aim to provide an increase in luminosity by restoring head-on collisions and therefore reducing the loss of luminosity due to the crossing angle. The crab cavities rotate the beam by providing z-dependent kicks near the interactio...

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Autores principales: Cruz Alaniz, Emilia, Papaphilippou, Yannis, Welsch, Carsten Peter
Lenguaje:eng
Publicado: 2020
Materias:
Acceso en línea:http://cds.cern.ch/record/2718290
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author Cruz Alaniz, Emilia
Papaphilippou, Yannis
Welsch, Carsten Peter
author_facet Cruz Alaniz, Emilia
Papaphilippou, Yannis
Welsch, Carsten Peter
author_sort Cruz Alaniz, Emilia
collection CERN
description The crab cavities to be installed in the High-Luminosity LHC (HL-LHC) aim to provide an increase in luminosity by restoring head-on collisions and therefore reducing the loss of luminosity due to the crossing angle. The crab cavities rotate the beam by providing z-dependent kicks near the interaction point. Two designs have been cast for this task: the RF dipole (RFD) and the Double Quarter Wave (DQW); a prototype of the latter one has been installed in the SPS and in 2018 the first successful crabbing of proton beams was achieved. As the design of both these crab cavities has to be very compact to be able to fit between the two beams, this causes a loss of axial symmetry that gives rise to high order multipoles. This study aims to explore the impact and tolerances of the high order multipoles on beam dynamics by performing DA studies on the HL-LHC lattice.
id cern-2718290
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2020
record_format invenio
spelling cern-27182902020-06-10T19:33:51Zhttp://cds.cern.ch/record/2718290engCruz Alaniz, EmiliaPapaphilippou, YannisWelsch, Carsten PeterRF multipoles deliverableAccelerators and Storage RingsThe crab cavities to be installed in the High-Luminosity LHC (HL-LHC) aim to provide an increase in luminosity by restoring head-on collisions and therefore reducing the loss of luminosity due to the crossing angle. The crab cavities rotate the beam by providing z-dependent kicks near the interaction point. Two designs have been cast for this task: the RF dipole (RFD) and the Double Quarter Wave (DQW); a prototype of the latter one has been installed in the SPS and in 2018 the first successful crabbing of proton beams was achieved. As the design of both these crab cavities has to be very compact to be able to fit between the two beams, this causes a loss of axial symmetry that gives rise to high order multipoles. This study aims to explore the impact and tolerances of the high order multipoles on beam dynamics by performing DA studies on the HL-LHC lattice.CERN-ACC-NOTE-2020-0031oai:cds.cern.ch:27182902020-05-18
spellingShingle Accelerators and Storage Rings
Cruz Alaniz, Emilia
Papaphilippou, Yannis
Welsch, Carsten Peter
RF multipoles deliverable
title RF multipoles deliverable
title_full RF multipoles deliverable
title_fullStr RF multipoles deliverable
title_full_unstemmed RF multipoles deliverable
title_short RF multipoles deliverable
title_sort rf multipoles deliverable
topic Accelerators and Storage Rings
url http://cds.cern.ch/record/2718290
work_keys_str_mv AT cruzalanizemilia rfmultipolesdeliverable
AT papaphilippouyannis rfmultipolesdeliverable
AT welschcarstenpeter rfmultipolesdeliverable