Contents Return Previous Page Next Page Index


Return To: Session FTP - Fusion Technology (Wednesday, 21 October)
Prev Page: (FTP/10) Feasibility Study for Very High Aspect Ratio
Next Page: (FTP/13) Advanced Tokamak Burning Plasma Experiment

(FTP/12) Design Optimization of JT-60SU for Steady-State Advanced Operation

   
K. Ushigusa , G. Kurita , N. Toyoshima , K. Nagashima , Y. Neyatani , N. Miya , S. Ishiyama , M. Kikuchi , A. Isayama , S. Ishida , H. Shirai , M. Kuriyama , T. Itoh , T. Yamamoto , Y. Ikeda , T. Imai , K. Hamamatsu , K. Tobita , M. Matsukawa , H. Kubo , S. Nakagawa , K. Mori , T. Kitai , S. Oguri , M. Otsuka 1, K. Nakashima 2, S. Nakagawa 3, R. Stambaugh 4, D. L. Sevier 4, M. Nagami , H. Ninomiya , M. Azumi , H. Kishimoto 
 
Japan Atomic Energy Research Institute, Naka Fusion Research Establishment Naka-machi, Naka-gun, Ibaraki-ken, 311-0193 Japan
1 Hitachi limited, Hitachi-shi, Ibaraki-ken Japan
2 Mitsubishi Fusion Center, Chiyoda-ku, Tokyo, Japan
3 Toshiba Corporation, Chiyoda-ku, Tokyo, Japan
4 General Atomics, San Diego, CA, USA

Abstract
Design optimization of JT-60SU  has been done for a steady-state advanced operation. A transport code simulation indicates that a fully non-inductive reversed shear  plasmas with fractions of 70% of the bootstrap current  and  30% of beam driven current can be sustained for more than 1,000s without any additional control. Investigations have been progressed on MHD stability , vertical positional stability and dynamics of the vertical displacement events . Significant progress has been achieved in the R&D of $\rm Nb_3Al$ superconducting wires, low induced activation material (Fe-Cr-Mn steel). A design improvement has been made in TF coils to reduce a local stress on radial disk. Dynamic behaviors of the tokamak machine have been analyzed at emergency events such as an earthquake.

      

Read the full paper in PDF format.


IAEA 1999