Status of a Single-Aperture 11 T Nb3Sn Demonstrator Dipole for LHC Upgrades

Conference · Tue May 01 00:00:00 EDT 2012 · Conf.Proc.

OSTI ID:1419186

Zlobin, A. ^[1]; Auchmann, B. ^[2]; Smekens, D. ^[2]; Karppinen, M. ^[2]; Oberli, L. ^[2]; Rossi, L. ^[2]; Andreev, N. ^[1]; Apollinari, G. ^[1]; Bossert, R. ^[1]; Kashikhin, V. ^[1]; Novitski, I. ^[1]; Yamada, R. ^[1]; Barzi, E. Z. ^[1]; Chlachidze, G. ^[1]; Nobrega, A. ^[1]; Turrioni, D. ^[1]

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1. Fermilab
2. CERN

The planned upgrade of the LHC collimation system includes two additional collimators to be installed in the dispersion suppressor areas of points 2, 3 and 7. The necessary longitudinal space for the collimators could be provided by replacing some 8.33 T NbTi LHC main dipoles with 11 T dipoles based on Nb3Sn superconductor and compatible with the LHC lattice and main systems. To demonstrate t his possibility Fermilab and CERN have started in 2011 a joint R&D program with the goal of building b y 2014 a 5.5-m long twin-aperture dipole prototype suitable for installation in the LHC. The first step of this program is the development of a 2-m long single-aperture demonstration dipole with the nominal field of 11 T at the LHC nominal current of ~11. 85 kA and 60 mm bore with ~20% margin. This paper describes the design, construction and test results of the single-aperture Nb3Sn demonstrator model for the LHC collimation system upgrade.

• Research Organization: Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP)
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 1419186
• Report Number(s): FERMILAB-CONF-12-234-TD; IPAC-2012-TUOAC03; 1125170
• Journal Information: Conf.Proc., Vol. C1205201; Conference: 3rd International Particle Accelerator Conference, New Orleans, Louisiana, 05/20-05/25/2012
• Country of Publication: United States
• Language: English

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