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  • 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

An insider's view of vacuum vessel fabrication

The complexity of the ITER vacuum vessel, its dimensions, the quantity of welding, and the degree of precision required makes the manufacturing effort for this strategic component one of the most challenging of the entire project.

European vacuum vessel fabrication underway at Walter Tosto in Chieti, Italy. © Walter Tosto Spa (Click to view larger version...)
European vacuum vessel fabrication underway at Walter Tosto in Chieti, Italy. © Walter Tosto Spa
Procurement responsibility falls to Europe and Korea. In 2010, the European Domestic Agency selected the AMW consortium (Ansaldo Nucleare S.p.A, Mangiarotti, Walter Tosto) for its share of the vessel sectors. Today, following detailed engineering, prototyping and qualification phases, manufacturing activities are in full swing.

In a recent video filmed at the Walter Tosto premises in Chieti, Italy, we get an insider's access to fabrication activities: the qualified technicians, specialized tooling, and many subcomponents involved in the fabrication of vacuum vessel sectors #5 and #4. (Nine sectors in all will form the full ring of the torus-shaped vacuum vessel.)

View the Walter Tosto video on Vimeo.



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