Compact high field superconducting coil

Author

Keilin, Victor E. ; Miklyaev, Sergey M. ; Surin, Michael I. ; Shevchenko, Sergey A.

Author_Institution

I.V. Kurchatov Inst. of Atomic Energy, Acad. of Sci., Moscow, Russia

Volume

12

Issue

1

fYear

2002

fDate

3/1/2002 12:00:00 AM

Firstpage

484

Lastpage

486

Abstract

In the frame of the program to fabricate compact laboratory superconducting high-field magnets (of order of 18 T @ 4.2 K and 20 T @ 1.8 K) a 17.7 T @ 4.2 K coil with 39 mm clear bore was developed and preliminary tested. The design field was reached without any training quenching. The innermost subcoil was wound of a doped Nb₃Sn wire with numerous internal tin sources. The two intermediate subcoils were wound of multifilamentary Nb₃Sn bronze route wires. The outer subcoil was wound of both Nb₃Sn and NbTi based wires. The current density averaged across the conductor cross-section is 120 A·mm^-2 at 17.8 T and 196 A·mm^-2 at 15.9 T. The total stored energy is 1.05 MJ.

Keywords

critical current density (superconductivity); magnetic flux; multifilamentary superconductors; superconducting coils; superconducting magnets; 1.05 MJ; 1.8 K; 17.7 T; 18 T; 20 T; 4.2 K; Nb₃Sn; bronze route wires; clear bore diameter; compact laboratory magnets; current density; fabrication; innermost subcoil; intermediate subcoils; multifilamentary wires; quench detection; quench protection; superconducting coil; superconducting high-field magnets; superconducting solenoid; user-friendly coil; Boring; Laboratories; Multifilamentary superconductors; Niobium; Superconducting coils; Superconducting magnets; Testing; Tin; Wires; Wounds;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2002.1018448

Filename

1018448