Transverse Coupling Measurements With High Intensity Beams Using Driven Oscillations

Transverse coupling has been linked to instabilities and reduction in dynamic aperture and is hence a crucial parameter to control in the LHC. In this article we describe the development to use driven oscillations to measure the transverse coupling with high intensity beams. The method relies on the...

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Detalles Bibliográficos
Autores principales: Persson, Tobias, Baud, Guillaume, Buffat, Xavier, Coello de Portugal, Jaime Maria, Fol, Elena, Fuchsberger, Kajetan, Gabriel, Mathieu, Gąsior, Marek, Giovannozzi, Massimo, Hemelsoet, Georges-Henry, Hostettler, Michael, Hruska, Marek, Jacquet, Delphine, Maclean, Ewen, Malina, Lukas, Olexa, Jakub, Skowroński, Piotr, Solfaroli Camillocci, Matteo, Söderén, Martin, Tomás, Rogelio, Valuch, Daniel, Wegscheider, Andreas, Wenninger, Jorg
Lenguaje:eng
Publicado: 2018
Materias:
Accelerators and Storage Rings
Acceso en línea:https://dx.doi.org/10.18429/JACoW-IPAC2018-MOPMF047
http://cds.cern.ch/record/2653726
Descripción
Sumario:Transverse coupling has been linked to instabilities and reduction in dynamic aperture and is hence a crucial parameter to control in the LHC. In this article we describe the development to use driven oscillations to measure the transverse coupling with high intensity beams. The method relies on the use of the transverse damper to drive an oscillation in a similar way as with an AC-dipole. The calculation of the coupling is based on the turn-by-turn data from all available BPMs gated for the excited bunch.

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