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Transverse Coupling Measurements With High Intensity Beams Using Driven Oscillations

Tobias Persson, Guillaume Baud, Xavier Buffat, Jaime Maria Coello De Portugal, Elena Fol, Kajetan Fuchsberger, Mathieu Gabriel, Marek Gąsior, Massimo Giovannozzi, Georges-Henry Hemelsoet, Michael Hostettler, Marek Hruska (+13 others)
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
more » ... Ms gated for the excited bunch.
doi:10.18429/jacow-ipac2018-mopmf047 fatcat:5bzsl4odfrerzmyubydqlne5dq