Subscribe options

Select your newsletters:

Please enter your email address:

@

Your email address will only be used for the purpose of sending you the ITER Organization publication(s) that you have requested. ITER Organization will not transfer your email address or other personal data to any other party or use it for commercial purposes.

If you change your mind, you can easily unsubscribe by clicking the unsubscribe option at the bottom of an email you've received from ITER Organization.

For more information, see our Privacy policy.

News & Media

Latest ITER Newsline

  • Thermal shield repair | Where are we at?

    Fitting the vacuum vessel sectors like a jacket, lining the inner wall of the cryostat, or covering the sides of vertical coil gravity supports, ITER's thermal [...]

    Read more

  • Assembly prep | Reviewing plans for in-vessel installation

    A thorough review of all 'in-vessel' assembly scope was organized by the ITER Machine Assembly Program in early February, with the active participation of senio [...]

    Read more

  • Image of the week | Last measurements before campaign

    In order to precisely identify the bevel regions that need to be rectified, metrologists from the SIMANN (SIMIC-Ansaldo) consortium are performing ultra-precise [...]

    Read more

  • Neutral Beam Test Facility | After upgrades, SPIDER testbed set to restart

    After a two-year shutdown for upgrades, the SPIDER testbed at the ITER Neutral Beam Test Facility in Padua, Italy, is preparing for commissioning and operation. [...]

    Read more

  • ITER Research Plan | Jointly preparing a new blueprint

    As part of work underway to update the ITER Project Baseline, a group of experts nominated by the Members met in February to evaluate the new blueprint for achi [...]

    Read more

Of Interest

See archived entries

Fusion world

JET beats its own record

European researchers at the Joint European Torus (JET) facility have announced that a new fusion energy record was achieved during the device's final campaign in late 2023.

The JET control room on the day of final plasma experiments in December 2023. Credit United Kingdom Atomic Energy Authority / EUROfusion. (Click to view larger version...)
The JET control room on the day of final plasma experiments in December 2023. Credit United Kingdom Atomic Energy Authority / EUROfusion.
In its final deuterium-tritium experimental campaign, called DTE3, JET tested operating scenarios extrapolated from small- and medium-sized European devices to pave the way for ITER and fusion power plants to follow. JET's unique capability to work with deuterium-tritium fuel allowed it to demonstrate relevant plasma scenarios and offer critical insights into key aspects such as heat exhaust, managing fuel retention, and the effect of fusion neutrons on cooling systems and electronics.

Using advanced scenarios to structure and control the plasma, researchers set a new fusion energy record of 69.26 megajoules of heat released during a single pulse in JET. This surpasses the record of 59 megajoules achieved during a five-second pulse in December 2021 as part of the previous (DTE2) campaign. 

The ITER Director-General celebrated the accomplishment: "Throughout its lifecycle, JET has been remarkably helpful as a precursor to ITER: in the testing of new materials, in the development of innovative new components, and nowhere more than in the generation of scientific data from deuterium-tritium fusion. The results obtained here will directly and positively impact ITER, validating the way forward and enabling us to progress faster toward our performance goals once operation begins. On a personal note, it has been for me a great privilege having myself been at JET for a few years. There, I had the opportunity to learn from many exceptional people." 

ITER's Deputy Construction Project Leader Tim Luce, who participated in the JET press conference on 8 February 2024, added, "The ITER project rests on the foundation of the world's community of science and technology research and especially on JET, because JET is at the cutting edge. It has unique capabilities and it has performed unique experiments. [...] This result is inspiring to us. It is one of the key operating scenarios we intend to explore on ITER and so having this result provides us confidence going forward. [...] I am extremely confident that the results here as they're become known and analyzed will have a profound effect on the ITER Research Plan."

JET ceased plasma operations at the end of 2023 after 105,842 pulses. The findings of JET's research have critical implications not only for ITER but also for the UK's STEP prototype powerplant, Europe's demonstration powerplant, DEMO, and other global fusion projects.

Read the full press release on the EUROfusion website here.
See the record pulse, #104522, on YouTube here.



return to the latest published articles