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Latest ITER Newsline

  • Tokamaks | Different approaches around the world

    Look east, look west ... tokamak projects are underway in different parts of the world. All of them are benefiting from and complementing the pioneering work al [...]

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  • Construction site | A guide to work underway

    Just like the ITER worksite, drone photography is also making progress. This view of the ITER platform is the sharpest and most detailed of all those we have pu [...]

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  • Vacuum vessel repair | A portfolio

    Whether standing vertically in the Assembly Hall or lying horizontally in the former Cryostat Workshop now assigned to component repair operations, the non-conf [...]

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  • European Physical Society | ITER presents its new plans

    The new ITER baseline and its associated research plan were presented last week at the 50th annual conference of the European Physical Society Plasma Physics Di [...]

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  • Image of the week | The platform's quasi-final appearance

    Since preparation work began in 2007 on the stretch of land that was to host the 42-hectare ITER platform, regular photographic surveys have been organized to d [...]

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Of Interest

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Manufacturing

Europe completes pre-compression rings

The French company CNIM (Toulon) has produced a tenth pre-compression ring for the ITER Project on behalf of Fusion for Energy, the European Domestic Agency.

At CNIM (Toulon, France), ten pre-compression rings were wound, cured, machined, inspected and proof tested. Nine are already at ITER and the lower set of three will be installed in the Tokamak pit soon. (Click to view larger version...)
At CNIM (Toulon, France), ten pre-compression rings were wound, cured, machined, inspected and proof tested. Nine are already at ITER and the lower set of three will be installed in the Tokamak pit soon.
The completed component is made of pultruded laminate, wound into a ring shape on specialized winding tooling, with alternate layers of 0.12 mm-thick epoxy tape applied. The completed ring is cured and then machined to the required final dimensions.

In the ITER machine, two sets of three pre-compression rings will be installed at the top and bottom of the toroidal field coil structures. Mounted around the "tips" of the structures, the high tensile strength of the rings "pushes back" against the against the forces exerted on the toroidal field coils during operation, relieving stress and fatigue. Four other pre-compression rings will serve as spares.

The completion of this procurement package has been celebrated by the European Domestic Agency and contractors alike. Read the full report here



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