Data di Pubblicazione:
2012
Citazione:
Design of 11 T Twin-Aperture Nb3Sn Dipole Demonstrator Magnet for LHC Upgrades / M. Karppinen, N. Andreev, G. Apollinari, B. Auchmann, E. Barzi, R. Bossert, V.V. Kashikhin, A. Nobrega, I. Novitski, L. Rossi, D. Smekens, A.V. Zlobin. - In: IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY. - ISSN 1051-8223. - 22:3(2012), pp. 4901504.1-4901504.4.
Abstract:
The LHC collimation upgrade foresees two additional collimators installed in the dispersion suppressor regions of points 2, 3 and 7. To obtain the necessary longitudinal space for the collimators, a solution based on an 11 T dipole as replacement of the 8.33 T LHC main dipoles is being considered. CERN and FNAL have started a joint development program to demonstrate the feasibility of Nb 3Sn technology for this purpose. The program started with the development and test of a 2-m-long single-aperture demonstrator magnet. The goal of the second phase is the design and construction of a series of 2-m-long twin-aperture demonstrator magnets with a nominal field of 11 T at 11.85 kA current. This paper describes the electromagnetic design and gives a forecast of the field quality including saturation of the iron yoke and persistent-current effects in the Nb 3Sn coils. The mechanical design concepts based on separate collared coils, assembled in a vertically split iron yoke are also discussed.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
Accelerator magnet; Nb3Sn; twin-aperture dipole
Elenco autori:
M. Karppinen, N. Andreev, G. Apollinari, B. Auchmann, E. Barzi, R. Bossert, V.V. Kashikhin, A. Nobrega, I. Novitski, L. Rossi, D. Smekens, A.V. Zlobin
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