Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Design and fabrication of forced-flow coils as an R and D program for large helical device

Conference · · IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States)
OSTI ID:5921388
; ; ; ;  [1]; ; ; ; ; ; ; ; ;  [2]
  1. National Inst. for Fusion Science, Chikusa-ku, Nagoya 464-01 (JP)
  2. Toshiba Corp., Suehiro-cho, Tsurumi-ku, Yokohama 230 (JP)
As research and development of helical field coil and poloidal field coil for Large Helical Device (LHD), two forced-flow cooled NbTi superconducting coils (TOKI-TF, PF) have been designed and fabricated. The helical coil (TOKI-TF) is a 1/4 scale model of LHD. It has the major radius of 0.9 m, the minor radius of 0.25 m and pitch number of 4. Nominal current and maximum field were designed to be 8 kA and 2.8 T, respectively. Another coil (TOKI-PF) was fabricated for the demonstration of LHD poloidal field coils. It consists of two double-pancakes with the inner radius of 0.6 m and the outer radius of 0.82 m. Nominal current of 25 kA simulates that of LHD poloidal field coils. In this paper, design concepts and details will be presented.
OSTI ID:
5921388
Report Number(s):
CONF-900944--
Conference Information:
Journal Name: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States) Journal Volume: 27:2
Country of Publication:
United States
Language:
English