Stainless steel sheathed forced internally cooled Nb3Sn superconductor and its coil test

Author

Agatsuma, K. ; Kaiho, K. ; Komuro, K. ; Sugimoto, M. ; Ikeno, Y. ; Nakagawa, M. ; Kohno, O.

Author_Institution

Electrotechnical Laboratory, Niihari-gun, Ibaraki, Japan

Volume

23

Issue

2

fYear

1987

fDate

3/1/1987 12:00:00 AM

Firstpage

1535

Lastpage

1538

Abstract

Forced cooled Nb3Sn superconducting coil with the stainless steel sheathed conductor has been manufactured and tested in a High Field Test Facility (HFTF). Some properties of the sheath material and the conductor with stainless steel sheath have been investigated. A 316L stainless steel sheathed conductor (the outer dimension of 13 × 23 mm²) was fabricated, and one coil was completed by the wind and react method using this conductor. The coil was connected with 8 pancake coils made of copper sheathed conductor. The forced cooled magnet of 9 double pancake coils was tested under 5.9 T of the back up field in HFTF and generated 8.8 T under 7.6 kA of transport current. Experimental results show that the Nb3Sn strand in the copper sheathed conductor near the connector was degraded due to handling through reconnecting the conductor for several times.

Keywords

Fluid flow; Superconducting magnets, mechanical factors; Superconducting magnets, plasma confinement; Conducting materials; Conductors; Copper; Manufacturing; Niobium; Steel; Superconducting coils; Test facilities; Testing; Tin;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.1987.1065052

Filename

1065052