Design of a 120 mm Bore 15 T Quadrupole for the LHC Upgrade Phase II

Author

Caspi, S. ; Ambrosio, G. ; Anerella, M. ; Barzi, E. ; Bossert, R. ; Cheng, D. ; Dietderich, D. ; Felice, H. ; Ferracin, P. ; Ghosh, A. ; Hafalia, R. ; Hannaford, R. ; Kashikhin, V.V. ; Pasholk, D. ; Sabbi, G.L. ; Schmalzle, J. ; Wanderer, P. ; Zlobin, A.

Author_Institution

Lawrence Berkeley Nat. Lab., Berkeley, CA, USA

Volume

20

Issue

3

fYear

2010

fDate

6/1/2010 12:00:00 AM

Firstpage

144

Lastpage

147

Abstract

Future upgrades to machines like the Large Hadron Collider (LHC) at CERN will push accelerator magnets beyond 10 T forcing the replacement of NbTi superconductors with advanced superconductors such as Nb₃Sn. In support of the LHC Phase-II upgrade, the US LHC Accelerator Research Program (LARP) is developing a large bore (120 mm) Nb₃Sn Interaction Region (IR) quadrupole (HQ) capable of reaching 15 T at its conductor limit and gradients of 199 T/m at 4.4 K and 219 T/m at 1.9 K. The 1 m long, two-layer magnet, addresses coil alignment and accelerator quality features while exploring the magnet performance limits in terms of gradient, stress and structure. This paper summarizes and reports on the design, mechanical structure, coil windings, reaction and impregnation processes.

Keywords

accelerator magnets; superconducting coils; superconducting magnets; windings; CERN; LARP; LHC phase-II upgrade; Nb₃Sn interaction region quadrupole; Nb₃Sn superconductor; NbTi superconductors; US LHC accelerator research program; accelerator magnets; accelerator quality features; bore size; coil alignment; coil windings; impregnation processes; large hadron collider; magnet performance limits; magnetic flux density 15 T; mechanical structure; reaction processes; size 120 mm; superconducting quadrupole magnet; ${rm Nb}_{3}{rm Sn}$; HQ; LARP; superconducting quadrupole magnet;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2010.2040147

Filename

5416331