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News & Media

Latest ITER Newsline

  • Toroidal field coils | Finishing touches on site

    Between the time a toroidal field coil is delivered to ITER and the moment it is ready to enter the pre-assembly process, certain tasks must be performed: the w [...]

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  • Cryostat base insertion | "A moment that will live in our memories"

    In the closing scene of the 1977 movie Close Encounters of the Third Kind, an alien spaceship hovers above an anxious and awestruck crowd of scientists and engi [...]

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  • Cryogenics | As dry as He can get

    Before it gets processed in the cold boxes of the ITER cryoplant, gaseous helium need to be perfectly dry—and this means removing every single water molecule th [...]

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  • Electron cyclotron transmission lines | Design phase ends

    US ITER is ready to start manufacturing high-power microwave transmission lines for the electron cyclotron resonance heating system. After several years of d [...]

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  • Gyrotrons | Russia completes four

    Gyrotrons (from the Greek 'gyro' (circle) and 'tron' (abstracted from electron) are the energy-generating devices of the electron cyclotron resonance heating sy [...]

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Of Interest

See archived entries

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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