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Novello, L.*; Cara, P.*; Coletti, A.*; Gaio, E.*; Maistrello, A.*; Matsukawa, Makoto; Philipps, G.*; Tomarchio, V.*; Yamauchi, Kunihito
IEEE Transactions on Applied Superconductivity, 26(2), p.4700507_1 - 4700507_7, 2016/03
Times Cited Count：7 Percentile：41.54(Engineering, Electrical & Electronic)Koide, Yoshihiko; Yoshida, Kiyoshi; Wanner, M.*; Barabaschi, P.*; Cucchiaro, A.*; Davis, S.*; Decool, P.*; Di Pietro, E.*; Disset, G.*; Genini, L.*; et al.
Nuclear Fusion, 55(8), p.086001_1 - 086001_7, 2015/08
Times Cited Count：30 Percentile：84.8(Physics, Fluids & Plasmas)The most distinctive feature of the superconducting magnet system for JT-60SA is the optimized coil structure in terms of the space utilization as well as the highly accurate coil manufacturing, thus meeting the requirements for the steady-state tokamak research: A conceptually new outer inter-coil structure separated from the casing is introduced to the toroidal field coils to realize their slender shape, allowing large-bore diagnostic ports for detailed plasma measurements. A method to minimize the manufacturing error of the equilibrium-field coils has been established, aiming at the precise plasma shape/position control. A compact butt-joint has been successfully developed for the Central Solenoid, which allows an optimized utilization of the limited space for the Central Solenoid to extend the duration of the plasma pulse.
Tsuchiya, Katsuhiko; Kizu, Kaname; Murakami, Haruyuki; Asakawa, Shuji; Kuramochi, Masaya; Yoshida, Kiyoshi; Tomarchio, V.*
IEEE Transactions on Applied Superconductivity, 20(3), p.525 - 529, 2010/06
Times Cited Count：8 Percentile：46.31(Engineering, Electrical & Electronic)The programme of constructing JT-60SA device is progressing under the framework of the Broader Approach (BA) agreement decided by Japan (JA) and European Union (EU). 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. It is decided in the agreement between JA and EU that the poloidal field magnet system, CS and EF coils, shall be procured by JA. The CS consists of independent winding pack modules, which is hung from the top of the TF coils through its pre-load structure. The six EF coils are attached to the TF coil cases through supports that include flexible plates allowing radial displacements. In the procurement arrangement (PA) for CS and EF coils that was recently agreed by JA and EU, basic mechanical designs of CS and EF coils are prescribed in the basis of structural analysis. The equipment for the mass-production of conductors for CS and EF coils is prepared by JAEA. And JAEA also prepare the equipment for the fabrication of EF coils in the field of JAEA Naka site because these coils have large bores. In this paper, we describe the recent mechanical design of poloidal field coils, and evaluation result for the support structure.
