Performance of the first LHC pre-series superconducting dipoles

Author

Bottura, L. ; Leroy, D. ; Modena, M. ; Pojer, M. ; Pugnat, P. ; Rossi, L. ; Sanfilippo, S. ; Siemko, A. ; Vlogaert, J. ; Walckiers, L. ; Wyss, C.

Author_Institution

Eur. Lab. for Nucl. Res., CERN, Geneva, Switzerland

Volume

13

Issue

2

fYear

2003

fDate

6/1/2003 12:00:00 AM

Firstpage

1235

Lastpage

1238

Abstract

Within the LHC magnet program, a preseries production of final design, full-scale superconducting dipoles has presently started in industry and magnets are being tested at CERN. The main features of these magnets are: two-in-one structure, 56 mm aperture, six-block two layer coils wound from 15.1 mm wide graded NbTi cables, and all-polyimide insulation. This paper reviews the main test results of magnets tested to date in both supercritical and superfluid helium. The results of the quench training, conductor performance, magnet protection, sensitivity to ramp rate, and magnetic field quality are presented and discussed in terms of the design parameters and the aims of the LHC magnet program.

Keywords

accelerator magnets; power cable insulation; proton accelerators; storage rings; superconducting cables; superconducting device testing; superconducting magnets; synchrotrons; 15.1 mm; 56 mm; CERN; LHC magnet program; LHC pre-series superconducting dipoles; NbTi; all-polyimide insulation; conductor performance; design parameters; full-scale superconducting dipoles; graded NbTi cables; magnet protection; magnet test results; magnetic field quality; quench training; ramp rate sensitivity; six-block two layer coils; supercritical helium; superfluid helium; two-in-one structure; Apertures; Large Hadron Collider; Niobium compounds; Production; Superconducting cables; Superconducting coils; Superconducting epitaxial layers; Superconducting magnets; Testing; Wounds;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2003.812641

Filename

1211820