KSTAR, Nb3Sn superconducting tokamak
KSTAR, tokamak superconductor de Nb3Sn
- Date
- 2008 · confidence high
- Place
- National Fusion Research Institute, Daejeon, South Korea
- Credited to
- National Fusion Research Institute (NFRI)
- Field
- Cosmos & Earth
What it is
A magnetic-fusion device with Nb3Sn superconducting coils, the first to use them in a fully superconducting, large tokamak. Its first plasma came in 2008 and in 2024 it held plasma at 100 million degrees for 48 seconds.
The Chinese EAST tokamak (2006) was the first fully superconducting tokamak using NbTi; KSTAR was the first using Nb3Sn. The 100-million-degree plasma records (2020-2024) refer to ion temperature.
What it led to
- design of ITER, in which Korea takes part
- long-pulse plasma confinement campaigns (H-mode, 100 million degrees)
- superconducting fusion engineering in Asia