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Field Quality and Alignment of the Series Produced Superconducting Matching Quadrupoles for the LHC Insertions

The production of the superconducting quadrupoles for the LHC insertions is advancing well and about half of the magnets have been produced. The coil size and field measurements performed on individual magnets both in warm and cold conditions are yielding significant results. In this paper we presen...

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Detalles Bibliográficos
Autores principales: Catalan-Lasheras, Nuria, Venturini Delsolaro, W, Kirby, Glyn, Ostojic, Ranko, Perez, Juan C, Prin, Herve
Lenguaje:eng
Publicado: 2005
Materias:
Acceso en línea:http://cds.cern.ch/record/865943
Descripción
Sumario:The production of the superconducting quadrupoles for the LHC insertions is advancing well and about half of the magnets have been produced. The coil size and field measurements performed on individual magnets both in warm and cold conditions are yielding significant results. In this paper we present the procedures and results of steering the series production at the magnet manufacturers and the assembly of cold masses at CERN. In particular, we present the correlation between coil sizes and geometrical field errors, the effect of permeability of magnet collars, and the analysis of warm-cold correlations and hysteresis of the main field multipoles. The results are compared with the target values for field multipoles and quadrupole alignment.