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  • Construction | Art around every corner

    Most of us have experienced it. Turning a corner in one of the Tokamak Building galleries and looking up at the graphic pattern of embedded plates in the concre [...]

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  • Machine | Ensuring port plugs will work as planned

    The stainless steel plugs sealing off each Tokamak port opening are not only massive, they are also complex—carrying and protecting some of the precious payload [...]

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  • Networks | Ensuring real-time distributed computing at ITER

    Many of the control systems at ITER require quick response and a high degree of determinism. If commands go out late, the state of the machine may have changed [...]

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  • Fusion codes and standards | Award for ITER Japan's Hideo Nakajima

    Hideo Nakajima, a senior engineer at ITER Japan, has received an award from the Japan Society of Mechanical Engineers (JSME) for his contribution to the develop [...]

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  • Machine assembly | First magnet in place

    When it travelled the ITER Itinerary last year, or during cold tests in the onsite winding facility, poloidal field coil #6 (PF6) felt rather large and massive. [...]

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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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