Construction and measurement of the pre-series twin aperture resistive quadrupole magnet for the LHC beam cleaning insertions

Author

de Rijk, G. ; Bidon, S. ; Boter, E. ; Clark, G.S. ; Hans, O. ; Racine, M. ; Salinas, A.

Author_Institution

CERN, Geneva, Switzerland

Volume

12

Issue

1

fYear

2002

fDate

3/1/2002 12:00:00 AM

Firstpage

55

Lastpage

58

Abstract

CERN´s Large Hadron Collider (LHC) requires 48 twin aperture resistive quadrupoles in the beam cleaning insertions. Canada is contributing these magnets to CERN in the framework of the TRIUMF-LHC collaboration contracts. A pre-series magnet was produced by Canadian industry and delivered in March 2001. This magnet incorporates important design changes that resulted from experience with a prototype magnet. The construction of this pre-series magnet and the measurements made at ALSTOM and at CERN are reported. A comparison is made between high precision pole distance measurements and the magnetic measurements performed with a rotating coil mole. Conclusions for series production and possibilities for multipole corrections are outlined.

Keywords

accelerator magnets; colliding beam accelerators; electromagnets; proton accelerators; storage rings; LHC beam cleaning insertions; Large Hadron Collider; high precision pole distance measurements; pre-series twin aperture resistive quadrupole magnet; prototype magnet; rotating coil mole; Apertures; Cleaning; Collaboration; Colliding beam devices; Construction industry; Contracts; Distance measurement; Large Hadron Collider; Prototypes; Structural beams;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2002.1018351

Filename

1018351