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News & Media

Latest ITER Newsline

  • Fuelling fusion | The magic cocktail of deuterium and tritium

    Nuclear fusion in stars is easy: it just happens, because the immense gravity of a star easily overcomes the resistance of nuclei to come together and fuse. [...]

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  • 360° image of the week | The cryoplant

    Cryogenics play a central role in the ITER Tokamak: the machine's superconducting magnets (10,000 tonnes in total), the vacuum pumps, thermal shields and so [...]

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  • Central solenoid assembly | First sequences underway

    What does it take to assemble the magnet at the heart of ITER? Heavy lifting, unerring accuracy, and a human touch. The central solenoid will be assembled from [...]

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  • Assembly | The eyes of ITER

    Supervisors ensure compliance and completion as machine and plant assembly forges ahead. In Greek mythology, Argus was considered an ideal guardian because his [...]

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  • Component repairs | Removing, displacing and disassembling

    A good repair job starts with a cleared workbench, the right tools on hand and a strong vise. This axiom, true for odd jobs in a home workshop, is also true for [...]

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Of Interest

See archived entries

Image of the week

Like a Meccano under the Christmas tree

Like Erector set or Meccano parts scattered beneath the tree on Christmas morning, components for the ITER Tokamak cover the floor of the Assembly Hall, waiting to be assembled.

Tokamak parts and the tools to assemble them: the Assembly Hall these days looks as if the contents of a Meccano, or Erector set, have been spilled on the floor... (Click to view larger version...)
Tokamak parts and the tools to assemble them: the Assembly Hall these days looks as if the contents of a Meccano, or Erector set, have been spilled on the floor...
On the right, in the foreground, toroidal field #9 is now ready to be upended and installed in one of the sector sub-assembly tools. On the opposite side of the Hall, one the two outboard thermal shield panel for vacuum vessel sector #1(7) is being prepared for installation. Both components are part of the second vacuum vessel "module," whose central component (the vacuum vessel sector) was docked in the sector sub-assembly tool in late December 2021 (watch this video).

A few steps further along lie elements of the complex rigging used to lift the heaviest ITER components. In light grey, on the left, the sector lifting tool is capable of lifting and balancing loads such as vacuum vessel sectors, toroidal field coils and 1,400-tonne sector sub-assemblies; the yellow dual crane heavy lifting beam, on the right, can rotate the loads 90° for transfer into the V-shaped openings of the tall standing tools.

Farther into the Hall, on the right, the "upending cradle" is tasked with lifting and tilting vacuum vessel sectors and toroidal field coils from horizontal to vertical. Directly across from that stands the first of two 20-metre-tall sector sub-assembly tools, each one currently supporting parts of the ITER vacuum vessel. In the first tool, it is possible to see that thermal shield panels are attached to the open wings, ready to be rotated inwards.

At the far end of the Hall, on the right, we can distinguish a kidney-bean-shaped bottom correction coil parked on temporary supports. Other coils from the same set are already installed in the bottom of the Tokamak pit and this one will join them soon.

Finally, a circular platform with ribs—the central solenoid assembly platform—can be seen in the back on the right. The central solenoid modules will be stacked one after another on this platform, encased within a strong supporting structure.

Given the high amount of co-activity in this space, and in the Tokamak pit beyond, the ITER construction teams carry out extremely detailed planning and coordination. To learn more about ITER machine assembly and how it is managed, see the new ITER Talks video released in this issue of Newsline.



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