Cold Tests of the Superconducting Coils for the Stellarator W7-X

Author

Baldzuhn, Juergen ; Ehmler, Hartmut ; Genini, Laurent ; Hertel, Kerstan ; Hoelting, Alf ; Sborchia, Carlo ; Schild, Thierry

Author_Institution

Max-Planck Inst. fuer Plasmaphysik, Greifswald

Volume

18

Issue

2

fYear

2008

fDate

6/1/2008 12:00:00 AM

Firstpage

509

Lastpage

512

Abstract

rdquoA new plasma fusion experiment, Wendelstein 7-X (W7-X), is built in the Max-Planck Institute for Plasma Physics in Greifswald (IPP), Germany. This experiment employs superconducting coils, allowing for plasma discharges up to 30 minutes duration. W7-X will be an "optimized" stellarator with respect to plasma transport and stability. The W7-X magnet consists of 70 individual coils in a toroidal arrangement. Each coil of W7-X is thoroughly tested before installation in a cryogenic test facility at the Commissariat a l\´Energie Atomique (CEA) in Saclay, France. The tests are essential, because no access is foreseen to the magnetic system during the entire operation period of W7-X. The test procedure will be described briefly, and some test results will be presented.

Keywords

cryogenics; fusion reactor operation; plasma instability; plasma transport processes; stellarators; superconducting coils; superconducting magnets; Commissariat a l´Energie Atomique; Max-Planck Institute; W7-X magnet; Wendelstein 7-X; cold tests; cryogenic test facility; magnetic system; operation period; plasma discharges; plasma fusion experiment; plasma physics; plasma stability; plasma transport; stellarator W7-X; superconducting coils; toroidal arrangement; Fusion magnets; stellarator; superconducting coils tests;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2008.920629

Filename

4515941