AMI-MIT 1-kA leads with high-temperature superconducting sections-design concept and key parameters

Author

Lee, Haigun ; Arakawa, Paul ; Efferson, Kenneth R. ; Fielden, Robert ; Iwasa, Yukikazu

Author_Institution

Francis Bitter Nat. Magnet Lab., MIT, Cambridge, MA, USA

Volume

11

Issue

1

fYear

2001

fDate

3/1/2001 12:00:00 AM

Firstpage

2539

Lastpage

2542

Abstract

This paper presents the design concept and key parameters of a pair of 1-kA AMI-MIT Leads, comprised of a high-temperature superconducting (HTS) section that, over a short distance at the warm end (80 K), operates in the current-sharing mode and a vapor-cooled copper lead that covers the temperature range above 80 K. Because of their reliance on vapor cooling, AMI-MIT Leads are applicable only to liquid helium cooled superconducting magnets such as those used in high-energy physics accelerators and fusion machines. The new 1-kA HTS section is designed to be scalable to high-current leads, e.g., 6 kA, 25 kA, 40 kA

Keywords

gold; high-temperature superconductors; silver; superconducting cables; superconducting magnets; (BiPb)₂Sr₂Ca₂Cu₃O _1/0Ag-Au; (BiPb)₂Sr₂Ca₂Cu₃O ₁₀-Ag-Au; 1 kA; 25 kA; 40 kA; 6 kA; 80 K; AMI-MIT Leads; current-sharing mode; fusion machines; high-energy physics accelerators; high-temperature superconducting leads; liquid helium cooled superconducting magnets; vapor-cooled copper lead; Cooling; Copper; Effluents; Helium; High temperature superconductors; Magnetics; Superconducting films; Superconducting magnets; Superconducting materials; Temperature distribution;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.920385

Filename

920385