Procedures and accuracy estimates for beta-beat correction in the LHC

The LHC aperture imposes a tight tolerance of 20% on the maximum acceptable beta-beat in the machine. An accurate knowledge of the transfer functions for the individually powered insertion quadrupoles and techniques to compensate beta-beat are key prerequisites for successful operation with high int...

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Detalles Bibliográficos
Autores principales: Tomás, R, Brüning, Oliver Sim, Calaga, R, Fartoukh, Stéphane David, Franchi, A, Giovannozzi, Massimo, Papaphilippou, Y, Peggs, S, Zimmermann, Frank
Lenguaje:eng
Publicado: 2006
Materias:
Accelerators and Storage Rings
Acceso en línea:http://cds.cern.ch/record/972668
Descripción
Sumario:The LHC aperture imposes a tight tolerance of 20% on the maximum acceptable beta-beat in the machine. An accurate knowledge of the transfer functions for the individually powered insertion quadrupoles and techniques to compensate beta-beat are key prerequisites for successful operation with high intensity beams. We perform realistic simulations to identify quadrupole errors in LHC and explore possible ways of correction to minimize beta-beat below the 20% level.

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