The planned upgrade of the LHC collimation system includes additional collimators in the LHC lattice. The longitudinal space for the collimators could be obtained by replacing some LHC main dipoles with shorter but stronger dipoles compatible with the LHC lattice and main systems. A joint development program with the goal of building a 5.5 m long two-in-one aperture Nb3Sn dipole prototype suitable for installation in the LHC is being conducted by FNAL and CERN magnet groups. As part of the first phase of the program, 1 m long and 2 m long single aperture models are being built and tested, and the collared coils from these magnets will be assembled and tested in two-in-one configuration in both laboratories. In parallel with the short model magnet activities, the work has started on the production line in view of the scale-up to 5.5 m long prototype magnet. The development of the final cryo-assembly comprising two 5.5 m long 11 T dipole cold masses and the warm collimator in the middle, fully compatible with the LHC main systems and the existing machine interfaces, has also started at CERN. This paper summarizes the progress made at CERN and FNAL towards the construction of 5.5 m long 11 T Nb3Sn dipole prototype and the present status of the activities related to the integration of the 11 T dipole and collimator in the LHC.
Status of the 11 T Nb3Sn dipole project for the LHC / F. Savary, N. Andreev, G. Apollinari, B. Auchmann, E. Barzi, R. Bruce, G. Chlachidze, R. De Maria, J. Dimarco, D. Duarte Ramos, M. Giovannozzi, B. Holzer, J.M. Jowett, S. Izquierdo Bermudez, M. Karppinen, G. Kirby, F. Lackner, R. Moron-Ballester, A.R. Nobrega, I. Novitski, L. Oberli, V. Parma, J.C. Perez, H. Prin, S. Redaelli, L. Rossi, D. Smekens, H. Thiesen, D. Turrioni, G. Velev, A.V. Zlobin. - In: IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY. - ISSN 1051-8223. - 25:3(2015), pp. 6994259.1-6994259.5. [10.1109/TASC.2014.2375914]
Status of the 11 T Nb3Sn dipole project for the LHC
L. Rossi;
2015
Abstract
The planned upgrade of the LHC collimation system includes additional collimators in the LHC lattice. The longitudinal space for the collimators could be obtained by replacing some LHC main dipoles with shorter but stronger dipoles compatible with the LHC lattice and main systems. A joint development program with the goal of building a 5.5 m long two-in-one aperture Nb3Sn dipole prototype suitable for installation in the LHC is being conducted by FNAL and CERN magnet groups. As part of the first phase of the program, 1 m long and 2 m long single aperture models are being built and tested, and the collared coils from these magnets will be assembled and tested in two-in-one configuration in both laboratories. In parallel with the short model magnet activities, the work has started on the production line in view of the scale-up to 5.5 m long prototype magnet. The development of the final cryo-assembly comprising two 5.5 m long 11 T dipole cold masses and the warm collimator in the middle, fully compatible with the LHC main systems and the existing machine interfaces, has also started at CERN. This paper summarizes the progress made at CERN and FNAL towards the construction of 5.5 m long 11 T Nb3Sn dipole prototype and the present status of the activities related to the integration of the 11 T dipole and collimator in the LHC.
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