• 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