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  • Cryoplant | First steps toward commissioning

    Every week since the beginning of November, a tube trailer filled with approximately 4,600 cubic metres (750 kg) of compressed gaseous helium delivers its load [...]

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  • Training | Seeking the next group of Monaco-ITER Fellows

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  • Contemporary art | Venet's "arcs" are as heavy as ITER coils

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  • Image of the week | Final activities on Europe's first sector

    The first vacuum vessel sector produced in Europe will arrive at ITER next year. Five of ITER's nine vacuum vessel sectors are the responsibility of Europe's AM [...]

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  • Vacuum vessel sector preparation | Lessons learned reduce work time by half

    In life as in the assembly of the ITER machine, 'lessons learned' are what makes progress possible. Gains in wisdom, time, skill, investment can be incremental; [...]

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Of Interest

See archived entries

12 minutes to understand TF coil manufacturing

Each toroidal field coil is made up of a winding pack (seven double pancakes plus radial plate) and a protective shell of stainless steel. At the La Spezia winding line, 750-metre lengths of toroidal field conductor will be bent into a D-shaped double spiral trajectory, and their length controlled to an accuracy of 500th of a millimetre per metre. (Click to view larger version...)
Each toroidal field coil is made up of a winding pack (seven double pancakes plus radial plate) and a protective shell of stainless steel. At the La Spezia winding line, 750-metre lengths of toroidal field conductor will be bent into a D-shaped double spiral trajectory, and their length controlled to an accuracy of 500th of a millimetre per metre.
The magnets responsible for confining the ITER plasma—the eighteen D-shaped toroidal field coils—will form an impressive superstructure within the ITER machine: at approximately 6,000 tonnes (coils plus cases), they will represent over one-fourth of the Tokamak's total weight.

In two new videos produced by the European Domestic Agency, we are taken inside a vast manufacturing facility in La Spezia, Italy, where preparations are under way for the fabrication of ten toroidal field coils (nine plus one spare) that are part of the European contribution to ITER.

From winding through heat treatment and on to insertion into radial plates, the toroidal field coil manufacturing process is complex and exacting, requiring unprecedented levels of tolerances and performance. In the videos, experts from the ASG consortium* and Europe speak of the technical challenges, the specialized tooling, and the qualification work underway.

You can see the two 6-minute videos on F4E's website.

*ASG consortium: Iberdrola Ingeniería y Construcción SAU, ASG Superconductors SpA and Elytt Energy SL



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