Enable Recite

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

  • Central solenoid | 1st delivery celebrated on both sides of the Atlantic

    Standing 18 metres tall at the very heart of the ITER Tokamak, the central solenoid will generate an intense magnetic field which, in turn, will induce an elect [...]

    Read more

  • Tooling | Radial beam fits just right

    When describing operations inside the ITER in the assembly theatre, one is invariably tempted to call up images from the realm of science fiction. How else to c [...]

    Read more

  • Fusion world | Curtain call for the COMPASS tokamak

    After 12 years of operation and 21,000 plasma shots, the Czech tokamak COMPASS ceased operation on 20 August 2021. The tokamak will now be disassembled to make [...]

    Read more

  • Engineering | US to deliver "tough" electronics to ITER

    ITER, a machine that will imitate the sun, will also mimic the sun's extreme environment: intense heat, strong magnetic fields and radiation. A team at US I [...]

    Read more

  • Image of the week | The lighthouse in the pit

    Like a lighthouse (without a beacon) the central column rises more than 20 metres above the floor of the assembly pit. The massive structure does not belong to [...]

    Read more

Of Interest

See archived entries

Tritium Building

Work resumes

The energy-producing plasmas in ITER will be fuelled in equal measure by the hydrogen isotopes deuterium and tritium. Deuterium is a stable element that industry has produced routinely since the 1940s; tritium on the other hand is rare, expensive and slightly radioactive and, for all these reasons, must be treated with extreme care and precaution. In the ITER installation, a whole building will accommodate the different systems and equipment that store, handle and recycle this precious element.

Activity has now resumed at level L2 of the Tritium Building. (Click to view larger version...)
Activity has now resumed at level L2 of the Tritium Building.


In late 2018, following ITER Council approval of the updated project schedule and a staged approach to full power operation, major civil works in the Tritium Building were put on hold in order to focus the workforce on the Tokamak and Diagnostics Buildings.

While the Tokamak Building was being readied for machine assembly and plant equipment was being installed in the Diagnostics Building, work was frozen at the Tritium Building at level 1 (L1). Activity has now resumed and the four levels that remain to be erected (L2 through L5) should be completed in the spring of 2023.

Most of the functions of the Tritium Building are directly linked to the full-power operation of the ITER Tokamak and, as such, will not be needed before 2035. However, the building also accommodates equipment that must be operational for First Plasma, such as the gas injection system that will feed hydrogen to the vacuum vessel, or components that are part of the HVAC, cooling system, vacuum pumping systems.

The civil work challenges for the Tritium Building are similar to those of the Tokamak Building, with areas where steel reinforcement will be exceptionally dense. (Click to view larger version...)
The civil work challenges for the Tritium Building are similar to those of the Tokamak Building, with areas where steel reinforcement will be exceptionally dense.
Also, although they will not be needed during the first phases of machine operation, several "captive" components such as manifold segments for the neutral beam injection or disruption mitigation systems must be installed before construction progresses.

The civil work challenges for the Tritium Building are similar to those of the Tokamak Building, with areas where steel reinforcement will be exceptionally dense. The difference is in the interior design: the Tritium Building is a house of many rooms (300 in total), which means there will be many inside walls to build and close to 5,000 cubic metres of concrete to pour.



return to the latest published articles