High Temperature Superconducting Magnet for Fast Discharging Experiments

Author

Dai, Yinming ; Wang, Qiuliang ; Song, Shousen ; Zhang, Bo ; Lei, Yuanzhong ; Bai, Ye ; Hu, Xinning ; Wang, Housheng ; Zhao, Baozhi

Author_Institution

Chinese Acad. of Sci., Beijing

Volume

17

Issue

2

fYear

2007

fDate

6/1/2007 12:00:00 AM

Firstpage

2208

Lastpage

2211

Abstract

We are carrying out a project to develop a conduction-cooled high temperature superconducting magnet system with an energy storage of 25 kJ. This magnet system will be used to investigate fast discharging performances. The magnet is constructed with 20 double pancakes. Each pancake is wound with Bi2223 tape. The magnet has an outer diameter of 212 mm and a clear bore of 108 mm. Cryogenics for the magnet system is designed to cool the coils with a GM cryocooler together with solid nitrogen. It is expected to operate the magnet system stand-alone. The operating current is designed as 110 A. It can generate a central magnetic field of 3.8 T at a temperature of 20 K. In this paper, the magnet design, coil fabrication and cryogenic system are presented.

Keywords

bismuth compounds; calcium compounds; cryogenics; discharges (electric); high-temperature superconductors; lead compounds; strontium compounds; superconducting magnets; superconducting tapes; Bi2223 tape; Bi_2-xPb_xSr₂Ca₂Cu₃O₁₀ - Interface; cryogenics; current 110 A; energy 25 kJ; fast discharging experiments; high temperature superconducting magnet; magnetic field; magnetic flux density 3.8 T; size 212 mm; solid nitrogen; temperature 20 K; Boring; Coils; Cryogenics; Energy storage; Nitrogen; Solids; Superconducting magnetic energy storage; Superconducting magnets; Temperature; Wounds; Conduction-cooled; fast discharging; solid nitrogen; superconducting magnet;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2007.899086

Filename

4277349