Rossi, L.

Paper	Title	Page
MOPAN085	Completion of the Series Fabrication of the Main Superconducting Quadrupole Magnets of LHC	356
	T. Tortschanoff, M. Modena, Y. Papaphilippou, L. Rossi, K. M. Schirm CERN, Geneva R. Burgmer, H.-U. Klein, D. Krischel, B. Schellong, P. Schmidt ACCEL, Bergisch Gladbach M. Durante, A. Payn, J.-M. Rifflet, F. Simon CEA, Gif-sur-Yvette
	By end of November 2006, the last cold mass of the main superconducting quadrupole cold masses were delivered by ACCEL Instruments to CERN. This comprised 360 cold masses for the arc regions of the machine and 32 special units dedicated to the dispersion suppressor regions. 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 slotting of the quadrupoles was complicated due to the multitude of variants and by the fact that a number of units needed to be replaced by spares which in some cases required a reshuffling of the positioning. The paper gives some final data about the successful fabrication at ACCEL Instruments and explains the issue of their best positions in the machine.
FRXKI03	Magnets for Upgrade of the Accelerator Complex at CERN	3738
	L. Rossi CERN, Geneva
	While the LHC is approaching commissioning phase, a global plan with different options for the consolidation and upgrade of the accelerator complex is under discussion at CERN. In one option the change of the interaction region (IR) magnets, in order to increase the luminosity of the LHC, is considered. This measure may be accompanied or not by an increase of the beam current. In any case the needs of new more performing Nb-Ti based magnets and/or Nb3Sn magnets is established. The choice of Nb3Sn based magnets with13-15 T peak field on the coil seems mandatory for the low-beta triplet quadrupoles in case a factor two or more in luminosity is envisaged. In another option the improvement of the injector chain is considered. For the moment the first priority is the design of a new PS of energy about 50 GeV, with duty cycle less than 1 Hz. In this paper a comparison among the option based on normal conducting magnets (today baseline) and superconducting magnets of various types will be presented. In the frame of the longer-term scenario, magnets envisaged for an upgrade of the present SPS (from 450 to 1 TeV) and for neutrino production facilities will be discussed as well.
	Slides