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The Expected Persistent Current Field Errors in the LHC Main Dipole and Quadrupole

The prediction of field errors due to persistent currents requires the knowledge of the magnetization of the cables concerned. Sufficient magnetization measurements are now available for strands from the six manufacturers which will make the superconducting cables. These measurements are used to cal...

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Detalles Bibliográficos
Autores principales: Wolf, R, Le Naour, S
Lenguaje:eng
Publicado: 2000
Materias:
Acceso en línea:http://cds.cern.ch/record/692010
Descripción
Sumario:The prediction of field errors due to persistent currents requires the knowledge of the magnetization of the cables concerned. Sufficient magnetization measurements are now available for strands from the six manufacturers which will make the superconducting cables. These measurements are used to calculate the field errors due to persistent current for LHC main dipole and quadrupole at LHC injection. Calculated are average errors over the machine, uncertainties between octants and random errors inside an octant. The errors are similar or smaller than what has been predicted before.