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

• Published in: IEEE transactions on applied superconductivity Vol. 23; no. 3; p. 4300204
• Main Authors: Dixon, I. R., Adkins, T., Ehmler, H., Marshall, W. S., Bird, M. D.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: New York, NY IEEE 01.06.2013; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Applied sciences; Assembly; Cable-in-conduit conductors (CICCs); Coils; Conductors; Conductors (devices); Electric connection. Cables. Wiring; Electrical engineering. Electrical power engineering; Electrical machines; Electromagnets; Exact sciences and technology; Helium; hybrid magnets; Impedance; Joints; Magnetic fields; Magnets; Niobium; Regulation and control; Superconducting magnets; Superconductivity; Various equipment and components; Winding; Windings; Series connection; Heat treatment; Cable-in-conduit conductors (CICCs); Magnet; Process control; hybrid magnets; Parallel; Superconducting magnet; Pipe cable; Manufacturing process; Quality control; High field; Electrical conductor; Magnetic field; Machine windings; superconducting magnets
• ISSN: 1051-8223; 1558-2515
• DOI: 10.1109/TASC.2012.2232338

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 Nb 3 Sn/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.