DocumentCode :
2882451
Title :
Completion of the series fabrication of the main superconducting quadrupole magnets of LHC
Author :
Tortschanoff, T. ; Modena, M. ; Papaphilippou, Y. ; Rossi, L. ; Schirm, K.-M. ; Burgmer, R. ; Klein, H.-U. ; Krischel, D. ; Schellong, B. ; Schmidt, P. ; Durante, M. ; Payn, A. ; Rifflet, J.-M. ; Simon, F.
Author_Institution :
CERN, Geneva
fYear :
2007
fDate :
25-29 June 2007
Firstpage :
356
Lastpage :
358
Abstract :
By end of November 2006, the last main superconducting quadrupole cold mass needed for the installation was delivered by ACCEL Instruments to CERN. In total, 360 cold masses for the arc regions of the machine and 32 special units dedicated to the dispersion suppressor regions are installed in the LHC ring. The latter ones contain the same main magnet but different types of correctors and are of increased length with respect to the regular arc ones. The end of the fabrication of these magnets coincided with the end of the main dipole deliveries allowing a parallel assembly into their cryostats and installation into the LHC tunnel. The positioning into the tunnel was optimized using the warm field measurements performed in the factory. On the other hand, the correct slot assignment of the quadrupoles was complicated due to the multitude of variants and to the fact that a number of units needed to be replaced by spares which were customized for other slots. The paper gives some final data about the successful fabrication at ACCEL Instruments and explains the issue of their best positions in the machine.
Keywords :
accelerator magnets; cryostats; proton accelerators; storage rings; superconducting magnets; synchrotrons; ACCEL instruments; CERN; LHC; cold mass; cryostats; dipole deliveries; dispersion suppressor; fabrication; installation; parallel assembly; superconducting quadrupole magnets; tunnel position; warm field; Apertures; Assembly; Coils; Fabrication; Instruments; Large Hadron Collider; Production facilities; Prototypes; Structural beams; Superconducting magnets;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Particle Accelerator Conference, 2007. PAC. IEEE
Conference_Location :
Albuquerque, NM
Print_ISBN :
978-1-4244-0916-7
Type :
conf
DOI :
10.1109/PAC.2007.4440210
Filename :
4440210
Link To Document :
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