Development of a Displacement Measurement System for Wendelstein 7-X Superconducting Magnet System

Author

Chen, Peng ; Caldwell-Nichols, Chris J. ; Kallmeyer, J. Peter ; Nitz, Marko ; Scherwenke, Frank

Author_Institution

Key Lab. of Appl. Supercond., Chinese Acad. of Sci., Beijing, China

Volume

21

Issue

1

fYear

2011

Firstpage

27

Lastpage

31

Abstract

The superconducting magnet system of the Wendelstein 7-X (W7-X) stellarator fusion experiment consists of 50 nonplanar and 20 planar coils. During the operation, the W7-X stellarator will produce a magnetic field strength of 3 T in the plasma center, and it will also bring very high electromagnetic forces in the coils and their related mechanical support structures. In order to ensure the mechanical integrity of the superconducting magnet system, 70 devices of a displacement measurement system are being installed to monitor the coil displacement. In this paper, the development of the displacement measurement system and the first measurement results performed on a W7-X superconducting planar coil are presented.

Keywords

displacement measurement; superconducting coils; superconducting magnets; W7-X superconducting planar coil; Wendelstein 7-X stellarator fusion; Wendelstein 7-X superconducting magnet system; displacement measurement system; electromagnetic force; mechanical support structure; nonplanar coils; Displacement measurement; Wendelstein 7-X (W7-X); stellarator; superconducting coil;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2010.2089792

Filename

5648333