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EAST sustains a high-confinement plasma for 1,066 seconds

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China's EAST tokamak in Hefei sustained a steady-state high-confinement (H-mode) plasma for 1,066 seconds at a reported ion temperature of order 100 million degrees Celsius, breaking its own 2023 record of 403 seconds. This is a confinement-duration result achieved without deuterium-tritium fuel; essentially no fusion energy was produced. Duty cycle is one of the engineering gaps between a physics result and a power station, and this is the clearest public marker of progress on it.

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Assembled from 35 blocks · 1 evidence · 29 related

  1. Story
  2. China's EAST tokamak in Hefei sustained a steady-state high-confinement (H-mode) plasma for 1,066 seconds at a reported ion temperature of order 100 million degrees Celsius, breaking its own 2023 record of 403 seconds. This is a confinement-duration result achieved without deuterium-tritium fuel; essentially no fusion energy was produced. Duty cycle is one of the engineering gaps between a physics result and a power station, and this is the clearest public marker of progress on it.
  3. Knowledge
  4. Tokamak (toroidal magnetic confinement)
  5. EAST (Experimental Advanced Superconducting Tokamak)
  6. Fusion triple product (n·T·τ_E)
  7. EAST sustains a high-confinement plasma for 1,066 seconds
  8. Connections
  9. EAST (Experimental Advanced Superconducting Tokamak)
  10. Tokamak (toroidal magnetic confinement)
  11. Fusion triple product (n·T·τ_E)
  12. Tokamak (toroidal magnetic confinement)
  13. EAST sustains a high-confinement plasma for 1,066 seconds
  14. Fusion triple product (n·T·τ_E)
  15. Tritium
  16. Deuterium
  17. Stellarator
  18. ITER
  19. Joint European Torus (JET)
  20. EAST (Experimental Advanced Superconducting Tokamak)
  21. JET's DTE1 campaign sets the first deuterium-tritium fusion power record
  22. JET's DTE2 campaign releases 59 MJ in a single pulse
  23. JET sets the single-pulse fusion energy record of 69.26 MJ
  24. ITER presents an updated project baseline to the ITER Council
  25. EAST sustains a high-confinement plasma for 1,066 seconds
  26. Commonwealth Fusion Systems' declared target for net energy gain at SPARC
  27. Tokamak (toroidal magnetic confinement)
  28. Inertial confinement fusion
  29. Wendelstein 7-X
  30. Lawson criterion
  31. NIF exceeds the Lawson criterion for ignition
  32. EAST sustains a high-confinement plasma for 1,066 seconds
  33. Wendelstein 7-X sets a triple product record for long-duration plasmas
  34. Evidence
  35. Long-pulse steady-state high-confinement operation has advanced from hundreds to over a thousand seconds, which bears on duty cycle rather than on energy gain
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/atlas?object=EVENT_EAST_1066_SECONDS_2025&experience=EVENT_EAST_1066_SECONDS_2025