Title :
Steering field quality in the main dipole magnets of the Large Hadron Collider
Author :
Todesco, E. ; Bellesia, B. ; Bottura, L. ; Devred, A. ; Remondino, V. ; Pauletta, S. ; Sanfilippo, S. ; Scandale, W. ; Vollinger, C. ; Wildner, E.
Author_Institution :
Accelerator Technol. Div., CERN, Geneva, Switzerland
fDate :
6/1/2004 12:00:00 AM
Abstract :
More than 10% of the collared coils of the main LHC dipoles have been produced. In this paper, we compare the measured field quality to beam dynamics targets using correlations to measurements at 1.9 K. The present status of field quality is given and corrective actions carried out to center field quality on optimal values are presented. Differences among the three manufacturers are analyzed, and the main results that concern correlation between cold and warm measurements are outlined. Present trends in the production and open points are discussed.
Keywords :
accelerator magnets; magnetic field measurement; particle accelerators; proton accelerators; quality control; storage rings; superconducting magnets; synchrotrons; 1.9 K; Large Hadron Collider; beam dynamics targets; cold measurements; collared coils; magnetic field measurement; main LHC dipoles; main dipole magnets; steering field quality; superconducting accelerator magnets; warm measurements; Current measurement; Large Hadron Collider; Magnetic analysis; Magnetic field measurement; Manufacturing; Phase measurement; Production; Superconducting cables; Superconducting coils; Superconducting magnets; Dipole magnets; field quality; superconducting accelerator magnets;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2004.829039
