DocumentCode :
836514
Title :
Status report on the LHC main magnet production
Author :
de Rijk, G. ; Bajko, M. ; Cornelis, M. ; Durante, M. ; Fessia, P. ; Miles, J. ; Modena, M. ; Molinari, G. ; Rinn, J. ; Savary, F. ; Schirm, K. ; Simon, F. ; Tommasini, D. ; Tortschanoff, T. ; Vlogaert, J.
Author_Institution :
Accel. Technol. Dept., Geneva, Switzerland
Volume :
15
Issue :
2
fYear :
2005
fDate :
6/1/2005 12:00:00 AM
Firstpage :
1078
Lastpage :
1083
Abstract :
The LHC ring will contain 1232 main dipole and 382 main quadrupole double aperture magnets. All main magnets are superconducting and employ Nb-Ti/Cu Rutherford type cables operated at 1.9 K. The dipole production has reached the equivalent of almost three octants of cold masses and nearly four octants of collared coils. The quadrupole production has reached 75 cold masses and over 150 bare magnets. The ramping up of large scale magnet production has posed several challenges which will be discussed, like: the coil size uniformity, coil pre-stress control, cold mass welding technique and the geometrical shape issues. The magnetic measurement results at warm will be presented together with their usage for the quality control in the production. The common features and differences of the three dipole producers will be discussed. The latest version of the production schedule will be presented.
Keywords :
accelerator magnets; colliding beam accelerators; magnetic variables measurement; production control; production management; quality control; storage rings; superconducting magnets; synchrotrons; welding; LHC ring; NbTi-Cu; Rutherford type cables; coil pre-stress control; coil size uniformity; cold mass welding; dipole production; geometrical shape issues; magnetic measurement; main magnet production; production control; production schedule; quadrupole double aperture magnets.; quadrupole production; quality control; superconducting accelerator magnets; superconducting magnets; Apertures; Large Hadron Collider; Large-scale systems; Mass production; Shape control; Size control; Superconducting cables; Superconducting coils; Superconducting magnets; Weight control; Production control; superconducting accelerator magnets;
fLanguage :
English
Journal_Title :
Applied Superconductivity, IEEE Transactions on
Publisher :
ieee
ISSN :
1051-8223
Type :
jour
DOI :
10.1109/TASC.2005.849500
Filename :
1439829
Link To Document :
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