Measurements and Modelling of Nonlinear Chromaticity and Detuning with Amplitude at 26 GeV

During electron-cloud MDs in October 2000, nonlinear chromaticity and amplitude-dependent detuning were measured with a 48-bunch LHC batch at 26 GeV. By fitting these data to an SPS optics model, we determine the magnitude of sextupole and decapole components in the SPS dipole magnets and octupole c...

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Detalles Bibliográficos
Autores principales: Arduini, Gianluigi, Faus-Golfe, A, Zimmermann, Frank
Lenguaje:eng
Publicado: 2001
Materias:
Accelerators and Storage Rings
Acceso en línea:http://cds.cern.ch/record/702665
Descripción
Sumario:During electron-cloud MDs in October 2000, nonlinear chromaticity and amplitude-dependent detuning were measured with a 48-bunch LHC batch at 26 GeV. By fitting these data to an SPS optics model, we determine the magnitude of sextupole and decapole components in the SPS dipole magnets and octupole components in the quadrupoles which would be consistent with the measurement. Using the procedure developed, in the future the nonlinear SPS optics model can quickly be updated from a standard set of measurements.

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