Title :
Status of the KSTAR PF6 and PF7 coil development
Author :
Park, K. ; Chung, W. ; Baek, S. ; Lim, B. ; Lee, S.J. ; Park, H. ; Chu, Y. ; Lee, S. ; Kim, K.P. ; Joo, J. ; Lee, K. ; Lee, D. ; Ahn, S. ; Oh, Y.K. ; Kim, K. ; Bak, J.S. ; Lee, G.S.
Author_Institution :
Nat. Fusion R&D Center, Korea Basic Sci. Inst., Daejeon, South Korea
fDate :
6/1/2005 12:00:00 AM
Abstract :
The KSTAR superconducting magnet system consists of 16 TF (Toroidal Field) and 14 PF (Poloidal Field) coils. Both of the TF and PF coil systems use internally-cooled Cable-In-Conduit Conductors (CICC). The PF coil system, which consists of 8 coils in the CS (Central Solenoid) coil system and 6 outer PF coils, provides 17 V-s and sustains the plasma current of 2 MA for 20 seconds inductively. PF 1-5 coils use Nb3Sn CICC in an Incoloy 908 conduit and PF 6-7 coils use NbTi CICC in a modified stainless steel 316LN(316LN+). The fabrication of PF7L/U & PF6L/U coils is completed at present. The engineering issues and fabrication process, which are related with the KSTAR PF 6-7 coil development, are presented and discussed in this paper. TF and PF coils are in the fabrication stage for KSTAR completion in the year 2006.
Keywords :
electric conduits; fusion reactor design; niobium alloys; plasma toroidal confinement; stainless steel; superconducting cables; superconducting coils; superconducting magnets; tin alloys; titanium alloys; 2 MA; 20 s; 316LN; Incoloy 908 conduit; KSTAR PF 6-7 coil development; Nb3Sn; NbTi; cable-in-conduit conductors; central solenoid coil; engineering issues; fabrication process; modified stainless steel; poloidal field coils; superconducting magnet; toroidal field coils; Conductors; Fabrication; Niobium compounds; Plasmas; Solenoids; Superconducting cables; Superconducting coils; Superconducting magnets; Tin; Titanium compounds; KSTAR; PF coil; superconducting magnet;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2005.849094
