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News & Media

Latest ITER Newsline

  • Remembering Bernard Bigot, ITER Director-General 2015-2022

    On the ITER site, the machinery of construction was humming just like on any weekday. Workers were concentrating on their tasks, laying rebar for new buildings [...]

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  • Tokamak assembly | Preparing for the Big Lift

    The distance was short but the challenge daunting: on Thursday last week, the first section of the plasma chamber was lifted 50 centimetres above its suppor [...]

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  • Image of the week | 13th toroidal field coil arrives from Europe

    The toroidal field coil procurement effort has been one of the longest of the ITER program, initiated by Procurement Arrangements signed in 2007 and 2008. Manuf [...]

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  • Diagnostics | Final Procurement Arrangement signed

    ITER Diagnostics reached an important milestone in December 2021 when it concluded the last Procurement Arrangement of the diagnostics program. After signing a [...]

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  • On site | A quick visit to the Control Building

    Work is progressing on the ITER Control Building, ergonomically designed for the 60 to 80 operators, engineers and researchers who will call it home.  [...]

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Of Interest

See archived entries

Image of the week

The crown unveiled

This picture of the Tokamak's underlying support system, now almost finalized, is worth a thousand words. Seeing the 18 radial walls from above, it is easier to understand the parallel that has been drawn with the flying buttresses of medieval architecture.

Crowning the Tokamak from underneath: 800 tonnes of concrete and 224 tonnes of steel went into this massive structure that will support a combined mass of 23,000 tonnes. (Click to view larger version...)
Crowning the Tokamak from underneath: 800 tonnes of concrete and 224 tonnes of steel went into this massive structure that will support a combined mass of 23,000 tonnes.
Eight hundred tonnes of concrete and 224 tonnes of steel went into this massive structure, one of the most strategic of the entire Tokamak Complex. The crown will support the combined mass of the machine and its enveloping cryostat (23,000 tonnes) and transfer mechanical, magnetic or thermal forces generated during operation in both normal and incidental situations to the building's structure.

A little more than three months have passed since the first concrete pour took place on the night of 22 May. With the exception of an opening reserved for the first magnet feed component—a cryostat feedthrough for poloidal field coil #4—the circle is now closed.

The red pipes that were part of the concrete cooling system will soon be filled with grout and their ends cut even with the concrete surface. Following the insertion of the cryostat feedthrough, the teams will begin to install the anchoring system for the 18 semi-spherical bearings that will stand between the concrete crown and the base of the cryostat.

 


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