Design and Manufacturing Main Linac Superconducting Quadrupole for ILC at Fermilab

Author

Kashikhin, Vladimir S. ; Andreev, Nikolai ; Lamm, Michael J. ; Lopes, Mauricio L. ; Tompkins, John C. ; Zlobin, Alexander V.

Author_Institution

Fermi Nat. Accel. Lab., Batavia, IL

Volume

18

Issue

2

fYear

2008

fDate

6/1/2008 12:00:00 AM

Firstpage

155

Lastpage

158

Abstract

The design and manufacturing of the first model of an International Linear Collider (ILC) Main Linac superconducting quadrupole is in progress at Fermilab. The quadrupole has a 78 mm aperture, a 36 T integrated gradient, and a cold mass length of 700 mm. A superferric magnet configuration with iron poles and four racetrack coils was chosen based on magnet performance, cost, and reliability considerations. Each coil is wound using enamel insulated, 0.5 mm diameter, NbTi superconductor. The quadrupole package also includes shell type dipole steering coils. The results of the quadrupole design, including magnetic and mechanical analyses, are presented. Specific issues related to the quadrupole magnetic center stability, superconductor magnetization and mechanical stability are discussed and analyzed. The magnet quench protection system, current leads, and mounting the quadrupole inside ILC Main Linac cryomodule will also be briefly discussed.

Keywords

linear colliders; magnetisation; niobium alloys; superconducting coils; superconducting materials; titanium alloys; Fermilab; ILC; International Linear Collider; NbTi; dipole steering coils; main linac superconducting quadrupole; mechanical stability; quadrupole magnetic center stability; quench protection; reliability; superconductor magnetization; superferric magnet configuration; Collider; magnetic design; main Linac; manufacturing; superconducting quadrupole;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2008.921945

Filename

4509459