Fabrication Progress of the Outsert Coils of the Series-Connected Hybrid Magnets

Author

Dixon, I.R. ; Adkins, Todd ; Ehmler, Hartmut ; Marshall, W.S. ; Bird, M.D.

Author_Institution

Nat. High Magn. Field Lab., Tallahassee, FL, USA

Volume

23

Issue

3

fYear

2013

fDate

Jun-13

Firstpage

4300204

Lastpage

4300204

Abstract

The series-connected hybrid magnets for the National High Magnetic Field Laboratory and the Helmholtz Zentrum Berlin (HZB) that are under construction utilize three grades of cable-in-conduit conductor (CICC). Each coil contains over 5000 kg of Nb₃Sn/Cu CICC in five piece-lengths. Fabrication of the coils has commenced with the winding of the outsert coil for HZB first. Work on both coils will proceed in parallel as the winding for the HZB coil is completed and is prepared for reaction heat treatment. Aspects of the coil fabrication process and quality controls will be discussed with attention given to the coil winding and joint assembly.

Keywords

copper; heat treatment; niobium alloys; superconducting coils; superconducting magnets; tin alloys; type II superconductors; windings; CICC; HZB coil; Nb₃Sn-Cu; cable-in-conduit conductor; coil winding; joint assembly; outsert coils; quality controls; reaction heat treatment; series-connected hybrid magnets; Coils; Conductors; Helium; Impedance; Joints; Superconducting magnets; Windings; Cable-in-conduit conductors (CICCs); hybrid magnets; superconducting magnets;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2012.2232338

Filename

6376110