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JET sets the single-pulse fusion energy record of 69.26 MJ

In its final deuterium-tritium campaign, DTE3, JET released 69.26 MJ of fusion energy during a 5.2-second plasma discharge, from about 0.2 milligrams of fuel, surpassing the 59 MJ set in December 2021. The campaign tested operating scenarios extrapolated from smaller European devices and was designed to hand ITER data that can no longer be obtained anywhere. This is a record of total fusion energy released in one pulse. It is not a gain record and must not be compared with NIF's target gain, which is a different quantity measured on a different kind of machine.

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Recorded on Joint European Torus (JET)

  1. JET's DTE1 campaign sets the first deuterium-tritium fusion power record
  2. JET's DTE2 campaign releases 59 MJ in a single pulse
  3. NIF achieves target gain greater than unity for the first time
  4. JET ceases plasma operations after 105,842 pulses
  5. NIF repeats target gain and raises the yield to 3.88 MJ
  6. JET sets the single-pulse fusion energy record of 69.26 MJ
  7. ITER presents an updated project baseline to the ITER Council
  8. NIF achieves ignition for the sixth time
  9. EAST sustains a high-confinement plasma for 1,066 seconds
  10. NIF reaches 8.6 MJ yield and a target gain of 4.13
  11. Commonwealth Fusion Systems' declared target for net energy gain at SPARC
  12. ITER's declared target date for the start of deuterium-tritium operation

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