Bunched-beam Schottky monitoring in the LHC

The LHC Schottky beam diagnostic system has the potential to measure beam parameters such as tune, chromaticity and momentum spread in a non-invasive way. It does so by detecting beam induced signals at 4.8 GHz, and extracting the characteristic modulation caused by incoherent motion of particles wi...

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Detalles Bibliográficos
Autores principales: Betz, M, Jones, O R, Lefevre, T, Wendt, M
Lenguaje:eng
Publicado: 2017
Materias:
Accelerators and Storage Rings
Acceso en línea:https://dx.doi.org/10.1016/j.nima.2017.08.045
http://cds.cern.ch/record/2286306
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author Betz, M
Jones, O R
Lefevre, T
Wendt, M
author_facet Betz, M
Jones, O R
Lefevre, T
Wendt, M
author_sort Betz, M
collection CERN
description The LHC Schottky beam diagnostic system has the potential to measure beam parameters such as tune, chromaticity and momentum spread in a non-invasive way. It does so by detecting beam induced signals at 4.8 GHz, and extracting the characteristic modulation caused by incoherent motion of particles within a bunch. The system was commissioned in 2011 and provided satisfactory beam-parameter measurements during LHC Run I for lead-ions. However, for protons its usability was substantially limited due to strong interfering common-mode signals. The system was upgraded with optimized traveling-wave pick-ups and an improved microwave signal path. Design and operational aspects for the complete system are shown, and the results from measurements with LHC beams in Run II are presented and discussed.
id oai-inspirehep.net-1624105
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2017
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spelling oai-inspirehep.net-16241052019-10-15T14:48:52Zdoi:10.1016/j.nima.2017.08.045http://cds.cern.ch/record/2286306engBetz, MJones, O RLefevre, TWendt, MBunched-beam Schottky monitoring in the LHCAccelerators and Storage RingsThe LHC Schottky beam diagnostic system has the potential to measure beam parameters such as tune, chromaticity and momentum spread in a non-invasive way. It does so by detecting beam induced signals at 4.8 GHz, and extracting the characteristic modulation caused by incoherent motion of particles within a bunch. The system was commissioned in 2011 and provided satisfactory beam-parameter measurements during LHC Run I for lead-ions. However, for protons its usability was substantially limited due to strong interfering common-mode signals. The system was upgraded with optimized traveling-wave pick-ups and an improved microwave signal path. Design and operational aspects for the complete system are shown, and the results from measurements with LHC beams in Run II are presented and discussed.oai:inspirehep.net:16241052017
spellingShingle Accelerators and Storage Rings
Betz, M
Jones, O R
Lefevre, T
Wendt, M
Bunched-beam Schottky monitoring in the LHC
title Bunched-beam Schottky monitoring in the LHC
title_full Bunched-beam Schottky monitoring in the LHC
title_fullStr Bunched-beam Schottky monitoring in the LHC
title_full_unstemmed Bunched-beam Schottky monitoring in the LHC
title_short Bunched-beam Schottky monitoring in the LHC
title_sort bunched-beam schottky monitoring in the lhc
topic Accelerators and Storage Rings
url https://dx.doi.org/10.1016/j.nima.2017.08.045
http://cds.cern.ch/record/2286306
work_keys_str_mv AT betzm bunchedbeamschottkymonitoringinthelhc
AT jonesor bunchedbeamschottkymonitoringinthelhc
AT lefevret bunchedbeamschottkymonitoringinthelhc
AT wendtm bunchedbeamschottkymonitoringinthelhc

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