Test and Analysis of Technology Quadrupole Shell (TQS) Magnet Models for LARP

Author

Caspi, S. ; Ambrosio, G. ; Andreev, A.N. ; Barzi, E. ; Bossert, R. ; Dietderich, D.R. ; Ferracin, P. ; Ghosh, A. ; Hafalia, A.R. ; Kashikhin, V.V. ; Lietzke, A.F. ; Novitski, I. ; Sabbi, G.L. ; Zlobin, A.V.

Author_Institution

Lawrence Berkeley Nat. Lab., Berkeley, CA

Volume

18

Issue

2

fYear

2008

fDate

6/1/2008 12:00:00 AM

Firstpage

179

Lastpage

183

Abstract

Test results are reported on four quadrupole magnet model tests (TQS01a, TQS01b, TQS01c, TQS02) in support of the development of a large-aperture superconducting quadrupole for the US LHC Accelerator Research Program (LARP). All four magnet assemblies used key and bladder technology to compress and support the coils within an iron yoke and an aluminum shell. The first three models tested different magnet assemblies of several coils, having MJR conductor, and gapped segmented bronze pole-islands. TQS02´s coils utilized improved (RRP) conductor, and addressed TQS01´s quench-training pattern, by utilizing titanium alloy (TiAl6V4) pole-islands, with no axial gaps during reaction. This paper summarizes the assembly, cool-down and performance of TQS01a, TQS01b, TQS01c, and TQS02 and compares measurements with design expectations.

Keywords

accelerator magnets; aluminium alloys; niobium alloys; superconducting coils; superconducting magnets; tin alloys; titanium alloys; LARP; MJR conductor; Nb₃Sn; TQS01 quench-training pattern; TQS02 coils; TiAlV; US LHC Accelerator Research Program; aluminum shell; gapped segmented bronze pole-islands; iron yoke; key and bladder technology; magnet assemblies; superconducting quadrupole magnet model tests; technology quadrupole shell magnet model; titanium alloy pole-islands; ${rm Nb}_{3}{rm Sn}$; LARP; TQS; superconducting quadrupole magnet;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2008.920821

Filename

4510852