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Report No.

Performance verification tests of JT-60SA CS model coil

Obana, Tetsuhiro*; Murakami, Haruyuki; Takahata, Kazuya*; Hamaguchi, Shinji*; Chikaraishi, Hirotaka*; Mito, Toshiyuki*; Imagawa, Shinsaku*; Kizu, Kaname; Natsume, Kyohei; Yoshida, Kiyoshi

In the JT-60 Super Advanced (JT-60SA) fusion experimental device, the magnet system consists of a central solenoid (CS) coil, 18 toroidal field coils and 6 plasma equilibrium (EF) field coils. The CS coil is composed of four electrically independent modules consisting of a quad-pancake and 6 octa-pancakes. In order to verify the process for the coil manufacturing and the fabrication jigs, the CS model coil was developed. The model coil is composed of one quad-pancake, which is the same dimension as the quad-pancake utilized in the module of the CS coil. Nb$$_{3}$$Sn cable-in-conduit (CIC) conductors used for the model coil is the same as conductors for the CS coil. As a final check of the coil manufacturing, the cold test of the model coil was conducted at the Nation Institute for Fusion Science (NIFS) test facility. The critical current, joint resistance, and pressure drop of the model coil were measured in the cold test. In addition, self-magnetic field of the model coil was measured. In this paper, the results of the performance verification tests are described.



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Category:Physics, Applied



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