World Expo 2025

ITER celebrates Fusion Energy Day in Osaka

Since April this year, the ITER Organization has been exhibiting at the World EXPO in Osaka, Japan—and with great success, as reflected by the tens of thousands of visitors received at the stand. (Organizers have recorded an average of 100,000 daily visitors to the EXPO.) On Sunday 13 July the ITER project took centre...

Boxing day

Awe and pride in the Radiofrequency Building

20 years ago, the ITER site decision

18 months of negotiation to achieve unanimity

ITER International School

On the integrated modelling of magnetic fusion plasmas

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Upcoming events

4 Nov 2025

FuseNet PhD Event 2025 at ITER

The FuseNet PhD Event 2025 will take place at ITER from 4 to 6 November 2025. This annual get...

Commonwealth Fusion Systems joins the ITPA

New records on Wendelstein 7-X

AI ignites innovation in fusion

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360° virtual tour updated

Fusion fuel cycle technology mapping

ITER International School: presentations available

EUROfusion Engineering Grants

ITER in pictures

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TWO upending tools

2025-07-16 - Two upending tools in the Assembly Hall are seen here in action, supporting 300-tonne toroidal field coils that they have raised to vertical. From this position, the coils can be hoisted by the overhead cranes and docked in sector module assembly tooling.

A busy shop floor

2025-07-15 - The ITER Assembly Hall, seen from the level of the overhead cranes. The tokamak pit is visible behind the wall at the back of the image.

New system to integrate

2025-07-15 - More than a kilometre of gas injection lines will be required for the new boronization system, which goes hand in hand with the new blanket first wall in tungsten. This schematic shows the proposed route of the gas lines through the lower levels of the Tokamak Building (preliminary design).

Properly installed

2025-07-15 - From design to reality: this photomontage shows the integrated auxiliary cold boxes vs the 3D model for the final installation. Well done!

Auxiliary cold boxes: testing underway

2025-07-15 - Five auxiliary cold boxes at Level 3 of the Tokamak Building have been connected to cryolines and testing is underway. The 28-tonne components act like dispatchers, receiving the different fluids from the cryogenic termination cold box located inside the cryoplant and redistributing them throughout the ITER machine.

Inspecting a new installation

2025-07-15 - Lahcène Benkheira and Adrien Forgeas from the Assembly & Commissioning Support Division inspect the connections between the auxiliary cold boxes and the cryolines inside the Tokamak Building.

Meeting with friends in Osaka

2025-07-13 - ITER Director-General Pietro Barabaschi meets with a delegation from China at the Osaka World Expo. The Director-General of the Chinese Domestic Agency, Wang Yan, is third from right.

Working with a smile

2025-07-10 - Personnel from the European Domestic Agency Fusion for Energy (F4E) and b.NEXT (an engineering consortium) perform a final check before the handover to the ITER Organization. The first CODAC command was issued from the ITER Control Room late in 2024; in the future, more than 80 people will work out the the "central command" office of ITER.

TWO sectors: close but not touching

2025-07-09 - Two sectors are now side by side in the tokamak pit, with 15 cm of space between them. They are suspended from radial beams that dispatch the load between the concrete walls of the pit and the central column tool, and also supported from below. Together, they weigh approximately 2,500 tonnes.

New gym facility for employees

2025-07-08 - ITER has opened a new fitness and recreational facility, a project initiated and managed by the ITER Staff Committee in response to strong demand from staff. Top features include more than 50 exercise machines and a pilates/yoga room.

6 + 7

2025-07-07 - 2025 has been a busy year. Sector modules #6 and #7 were installed in June and April, respectively. Another sector module should be inserted in December.

A perfect match

2025-07-07 - This wide-angle view of the tokamak pit shows two vacuum vessel sector modules side by side, matching perfectly.

Rotating to the other side

2025-07-07 - Sector #1 is rotated over to expose its second side. Carrying out the rotation operation on the platform avoids congestion in the Assembly Hall.

Another sector rotated outdoors

2025-07-07 - After vacuum vessel sector #4 in June, sector #1 has been rotated under the huge gantry crane that has been installed on the platform near the former Cryostat Workshop. Both sectors require dimensional repair on their second sides.