The Construction and Testing of YBCO Pancake Coils for a High Field Solenoid

Author

Shiroyanagi, Y. ; Ghosh, A.K. ; Gupta, R. ; Sampson, W.B.

Author_Institution

Supercond. Magn. Div., Brookhaven Nat. Lab., Upton, NY, USA

Volume

21

Issue

3

fYear

2011

fDate

6/1/2011 12:00:00 AM

Firstpage

1649

Lastpage

1652

Abstract

Pancake coils are being fabricated using second generation (2G) High Temperature Superconductor (HTS) for a prototype 10 T solenoid. The length of conductor in each coil is 100 m and the inner diameter of the coil is 101 mm. The critical current of each coil was measured at 77 K in liquid nitrogen and down to ~20 K in helium gas. It has been observed that the effect of thermal shock during cool-down may cause coil performance to degrade irreversibly. The detailed results and the improvements to achieve 10 T will be discussed.

Keywords

barium compounds; critical current density (superconductivity); high-temperature superconductors; solenoids; superconducting coils; thermal shock; yttrium compounds; 2G high temperature superconductor; YBCO; YBCO pancake coil; critical current; helium gas; high field solenoid; liquid nitrogen; second generation HTS; thermal shock; Coils; Conductors; Critical current; High temperature superconductors; Solenoids; Superconducting magnets; Temperature measurement; 2G HTS solenoid; Critical current; pancake coil; thermal degradation;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2010.2097570

Filename

5685589