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Report No.

Development of JT-60SA superconducting magnet system

Yoshida, Kiyoshi; Tsuchiya, Katsuhiko; Kizu, Kaname; Murakami, Haruyuki; Kamiya, Koji; Obana, Tetsuhiro*; Takahata, Kazuya*; Peyrot, M.*; Barabaschi, P.*

The upgrade of JT-60U magnet system to superconducting coils (JT-60SA) is carried out by both parties of Japanese government and European commission (EU) in the framework of the Broader Approach (BA) agreement. The magnet system for JT-60SA consists of 18 Toroidal Field (TF) coils, a Central Solenoid (CS) with four modules, six Equilibrium Field (EF) coils. The TF coil case encloses the winding pack and is the main structural component of the magnet system. The CS consists of four independent winding pack modules, which is support from the bottom of the TF coils. The six EF coils are attached to the TF coil cases through supports with flexible plates allowing radial displacements. The construction of CS and EF coils was started in 2008 in Japan. The construction of TF coils was started in 2009 in EU. This paper introduces the design of JT-60SA superconducting magnet and the design and experimental activities in Japan.



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Category:Physics, Applied



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