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  • Cryostat base | Grand opening soon

    Picture a giant soup plate, 30 metres in diameter, slowing descending into a deep concrete cylinder. Track the near imperceptible movement of the double overhea [...]

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  • Research | ITER Scientist Fellows are at the cutting edge

    In the area of cutting-edge research—and particularly the sophisticated modelling of plasmas—the project is benefitting from the assistance of world-renowned ex [...]

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  • Image of the week | Testing the load path

    Teams are preparing now for the commissioning and dynamic load tests that will be carried out in the coming weeks on the assembly bridge cranes. The load tests, [...]

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  • In memoriam | Physicist John Wesson

    The theoretical physicist, author of a major reference book on magnetic confinement fusion in tokamaks, was known to many members of the ITER community. Some [...]

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  • CODAC | The "invisible system" that makes all things possible

    It is easy to spot all the big equipment going into ITER; what is not so visible is the underlying software that makes the equipment come alive. Local control [...]

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Of Interest

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Inside the arena

A visit to the deep "well" where the ITER Tokamak assembly will begin next year begins with a journey underground ... through a maze of giant pillars, omnipresent scaffolding and spiral staircases.

All of the openings in the bioshield will allow access to the tokamak for all of the auxiliary systems needed to run the machine (fuelling, power, cooling, diagnostics, etc.). But the four ovoid-shaped openings that stand out in this picture are reserved for particular equipment—the powerful neutral beam injectors that will provide the bulk of ITER's heating power and the neutral beam used for diagnostics. (Click to view larger version...)
All of the openings in the bioshield will allow access to the tokamak for all of the auxiliary systems needed to run the machine (fuelling, power, cooling, diagnostics, etc.). But the four ovoid-shaped openings that stand out in this picture are reserved for particular equipment—the powerful neutral beam injectors that will provide the bulk of ITER's heating power and the neutral beam used for diagnostics.
This is a place where one can get easily lost. Access, safeguarded pathways, and metal staircases move as work progresses and once-familiar itineraries often turn into dead ends.

But there's a reward to this erring. Having found (and climbed) the proper staircase, the view opens at last to what we have come to see: a concrete arena, bristling with steel rebar. The scene that sets the stage for one of the most awesome experiments in human history.

Soon, though, the view will change. The installation of a temporary steel cap—whose purpose is to protect teams below while allowing work to continue on the bioshield, above—will hide the lowest level of the Tokamak Pit from our view.


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