Design of the Precompression Mechanism and Gravity Support for the Central Solenoid Assembly in the JT-60SA Tokamak

Author

Tsuchiya, Katsuhiko ; Kizu, Kaname ; Murakami, Haruyuki ; Yoshizawa, Norio ; Koide, Yoshihiko ; Yoshida, Kiyoshi

Author_Institution

Japan Atomic Energy Agency, Naka, Japan

Volume

42

Issue

4

fYear

2014

fDate

Apr-14

Firstpage

1042

Lastpage

1046

Abstract

The precompression mechanism is a key issue for central solenoid (CS) support structure. The support structure of CS assembly should act a role of withstanding the strong electromagnetic forces. The gap is not allowed between CS modules and the support structure due to the difference of their thermal expansion coefficients after cool down. The support structure should also have the precompression mechanism to cancel this gap. The support structure for CS assembly is designed considering the real procedure to set the precompression mechanism and load the required compression.

Keywords

Tokamak devices; fusion reactor design; plasma toroidal confinement; solenoids; thermal expansion; JT-60SA tokamak; central solenoid assembly; central solenoid support structure; electromagnetic forces; gravity support; precompression mechanism design; thermal expansion coefficients; Assembly; Coils; Gravity; Plasmas; Random access memory; Stress; Central solenoid (CS); JT-60SA; gravity support; precompress; superconducting magnet; superconducting magnet.;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/TPS.2014.2307920

Filename

6774933