Design and Fabrication of a Single-Aperture 11 T Dipole Model for LHC Upgrades

A V Zlobin,N Andreev, G Apollinari,B Auchmann,E Barzi,R Bossert,M Karppinen,F Nobrega,I Novitski,L P Rossi, D Smekens,D Turrioni,R Yamada

Applied Superconductivity, IEEE Transactions（2012）

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摘要

The planned upgrade of the LHC collimation system includes additional collimators to be installed in the dispersion suppressor areas of points 2, 3 and 7. To provide the necessary longitudinal space for the collimators, a replacement of 8.33 T Nb-Ti LHC main dipoles with 11 T dipoles based on Nb3Sn superconductor compatible with the LHC lattice and main systems is being considered. To demonstrate this possibility FNAL and CERN have started a joint program to develop a 2 m long single-aperture dipole magnet with the nominal field of 11 T at ~11.85 kA current and 60 mm bore. This paper describes the demonstrator magnet magnetic and mechanical designs and analysis, coil fabrication procedure. The Nb3Sn strand and cable parameters and test results are also reported.

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关键词

accelerator magnets,collimators,niobium compounds,superconducting cables,superconducting coils,superconducting magnets,superconducting materials,cern,fnal,lhc collimation system,lhc lattice upgrades,nb3sn,accelerator magnet,cable parameters,coil fabrication procedure,demonstrator magnet magnetic design,dispersion suppressor,longitudinal space,mechanical designs,single-aperture 11 t dipole model,single-aperture dipole magnet,size 2 m,size 60 mm,superconductor,${rm nb}_{3}{rm sn}$ cable,dipole magnet,lhc upgrade,superconducting,mechanism design,large hadron collider,stress,superconductors

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