Test Results of Central Magnetic Field and Field Uniformity of a High Temperature Superconducting Magnet With Gap

Author

Youngmin Kim ; Myunghun Kang ; Myunghwan Ku ; Gueesoo Cha ; Kyoungho Paik ; Choong-hyun Yoo

Author_Institution

Dept. of Electr. Eng., Soonchunhyang Univ., Asan, South Korea

Volume

22

Issue

3

fYear

2012

fDate

6/1/2012 12:00:00 AM

Firstpage

9501905

Lastpage

9501905

Abstract

Due to the magnetic anisotropy of a High Temperature Superconducting (HTS) tape, inserting a gap between pancake windings can increase the central magnetic field and improve the field uniformity of HTS magnets consisting of pancake windings. Although inserting gaps with constant length can increase the central magnetic field, optimizing the length of each gap to maximize the central magnetic field is preferred. This paper shows the test results of HTS magnets with and without optimized gaps. Both magnets consisted of 12 BSCCO-2223 pancake windings. The test results were compared with the calculation results, and confirmed that the central magnetic field of the HTS magnet with optimized gap was increased compared with the HTS magnet without gap. The magnetic field uniformity of the HTS magnet was also improved.

Keywords

bismuth compounds; calcium compounds; high-temperature superconductors; magnetic anisotropy; strontium compounds; superconducting critical field; superconducting magnets; superconducting tapes; BSCCO-2223 pancake windings; BiSrCaCuO; HTS magnet; central magnetic field; high temperature superconducting magnet; high temperature superconducting tape; magnetic anisotropy; magnetic field uniformity; optimized gap; Critical current; Current measurement; High temperature superconductors; Magnetic field measurement; Magnetic fields; Superconducting magnets; Windings; Central magnetic field; HTS magnets; critical current; optimized gap; pancake winding; uniformity;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2011.2177055

Filename

6086577