Author :
Matsui, K. ; Takahashi, Y. ; Nishi, M. ; Nunoya, K. ; Kato, T. ; Nakajima, H. ; Hiyama, T. ; Sugimoto, M. ; Isono, T. ; Kawano, K. ; Koizumi, N. ; Hamada, K. ; Ando, T. ; Tsuji, H. ; Shimamoto, S. ; Shiga, N. ; Aoki, N. ; Ichihara, M.
Abstract :
The Nb3Sn cable is being fabricated for the central solenoid (CS) model coil under the ITER Engineering-Design Activity. The cable consists of about 1000 strands whose diameter is 0.81 mm. The design current is 48 kA at a magnetic field of 13 T. The 0.6-GJ CS model coil is operated in a pulse mode (0.5 T/s). The first trial fabrication of a 100-m dummy cable and a 20-m superconducting cable was completed successfully. The second trial fabrication of a 1000-m dummy cable was performed to establish the stable manufacturing procedure in January, 1995. The authors measured the AC losses of the full-sized conductor and could determine the cable coupling time constant. They analyzed the heat generation of the CS model coil and calculated the temperature rise of the cable for the model coil
Keywords :
electron device manufacture; fusion reactor materials; fusion reactors; manufacturing processes; niobium alloys; power cables; superconducting cables; superconducting coils; superconducting magnets; thermal analysis; tin alloys; 0.6 GJ; 0.81 mm; 100 m; 1000 m; 18 T; 20 m; 48 kA; AC losses; ITER central solenoid model coil; Nb3Sn; cable coupling time constant; design; fabrication; heat generation; magnetic field; manufacturing procedure; multistrand superconductors; superconducting cables; temperature rise; Fabrication; Loss measurement; Magnetic fields; Manufacturing; Niobium; Solenoids; Superconducting cables; Superconducting coils; Time measurement; Tin;
