First β-beating measurement and optics analysis for the CERN Large Hadron Collider

Proton beams were successfully steered through the entire ring of the CERN Large Hadron Collider (LHC) on September the 10th of 2008. A reasonable lifetime was achieved for the counterclockwise beam, namely beam 2, after the radiofrequency capture of the particle bunch was established. This provided...

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Main Authors: M. Aiba, S. Fartoukh, A. Franchi, M. Giovannozzi, V. Kain, M. Lamont, R. Tomás, G. Vanbavinckhove, J. Wenninger, F. Zimmermann, R. Calaga, A. Morita
Format: Article
Language:English
Published: American Physical Society 2009-08-01
Series:Physical Review Special Topics. Accelerators and Beams
Online Access:http://doi.org/10.1103/PhysRevSTAB.12.081002
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author M. Aiba
S. Fartoukh
A. Franchi
M. Giovannozzi
V. Kain
M. Lamont
R. Tomás
G. Vanbavinckhove
J. Wenninger
F. Zimmermann
R. Calaga
A. Morita
author_facet M. Aiba
S. Fartoukh
A. Franchi
M. Giovannozzi
V. Kain
M. Lamont
R. Tomás
G. Vanbavinckhove
J. Wenninger
F. Zimmermann
R. Calaga
A. Morita
author_sort M. Aiba
collection DOAJ
description Proton beams were successfully steered through the entire ring of the CERN Large Hadron Collider (LHC) on September the 10th of 2008. A reasonable lifetime was achieved for the counterclockwise beam, namely beam 2, after the radiofrequency capture of the particle bunch was established. This provided the unique opportunity of acquiring turn-by-turn betatron oscillations for a maximum of 90 turns right at injection. Transverse coupling was not corrected and chromaticity was estimated to be large. Despite this largely constrained scenario, reliable optics measurements have been accomplished. These measurements together with the application of new algorithms for the reconstruction of optics errors have led to the identification of a dominant error source.
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spelling doaj.art-2af9ede555024958bfc8a5db6aaa609f2022-12-21T19:13:11ZengAmerican Physical SocietyPhysical Review Special Topics. Accelerators and Beams1098-44022009-08-0112808100210.1103/PhysRevSTAB.12.081002First β-beating measurement and optics analysis for the CERN Large Hadron ColliderM. AibaS. FartoukhA. FranchiM. GiovannozziV. KainM. LamontR. TomásG. VanbavinckhoveJ. WenningerF. ZimmermannR. CalagaA. MoritaProton beams were successfully steered through the entire ring of the CERN Large Hadron Collider (LHC) on September the 10th of 2008. A reasonable lifetime was achieved for the counterclockwise beam, namely beam 2, after the radiofrequency capture of the particle bunch was established. This provided the unique opportunity of acquiring turn-by-turn betatron oscillations for a maximum of 90 turns right at injection. Transverse coupling was not corrected and chromaticity was estimated to be large. Despite this largely constrained scenario, reliable optics measurements have been accomplished. These measurements together with the application of new algorithms for the reconstruction of optics errors have led to the identification of a dominant error source.http://doi.org/10.1103/PhysRevSTAB.12.081002
spellingShingle M. Aiba
S. Fartoukh
A. Franchi
M. Giovannozzi
V. Kain
M. Lamont
R. Tomás
G. Vanbavinckhove
J. Wenninger
F. Zimmermann
R. Calaga
A. Morita
First β-beating measurement and optics analysis for the CERN Large Hadron Collider
Physical Review Special Topics. Accelerators and Beams
title First β-beating measurement and optics analysis for the CERN Large Hadron Collider
title_full First β-beating measurement and optics analysis for the CERN Large Hadron Collider
title_fullStr First β-beating measurement and optics analysis for the CERN Large Hadron Collider
title_full_unstemmed First β-beating measurement and optics analysis for the CERN Large Hadron Collider
title_short First β-beating measurement and optics analysis for the CERN Large Hadron Collider
title_sort first β beating measurement and optics analysis for the cern large hadron collider
url http://doi.org/10.1103/PhysRevSTAB.12.081002
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