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  • A world in itself

    From a height of some 50 metres, you have the entire ITER worksite at your feet. The long rectangle of the Diagnostics Building stands out in the centre, with [...]

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  • US completes toroidal field deliveries for ITER

    The US Domestic Agency achieved a major milestone in February by completing the delivery of all US-supplied toroidal field conductor to the European toroidal fi [...]

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  • Thin diagnostic coils to be fitted into giant magnets

    Last week was marked by the first delivery of diagnostic components—Continuous External Rogowski (CER) coils—from the European Domestic Agency to the ITER Organ [...]

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  • Addressing the challenge of plasma disruptions

    Plasma disruptions are fast events in tokamak plasmas that lead to the complete loss of the thermal and magnetic energy stored in the plasma. The plasma control [...]

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  • Blending (almost) seamlessly into the landscape

    Located in the foothills of the French Pre-Alps, the ITER installation blends almost seamlessly into the landscape. The architects' choice ofmirror-like steel c [...]

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Of Interest

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Divertor target qualification phase begins in Europe

Examples of how the small-scale mockups of the inner vertical target could look when completed. (Click to view larger version...)
Examples of how the small-scale mockups of the inner vertical target could look when completed.
The plasma-facing components of the ITER divertor will be exposed to a heat load that is ten times higher than that of a spacecraft re-entering Earth's atmosphere (10-20 MW per square metre). To ensure the performance and manufacturability of these critical components, qualification activities on the ITER divertor targets (inner vertical target, outer vertical target, and dome) have been underway for years.

The European Domestic Agency, responsible for procuring the divertor inner vertical target, has concluded multiple framework contracts for the fabrication of qualification prototypes. Work will be conducted in two phases: the pre-qualification phase, during which small-scale prototypes will be manufactured and tested in order to validate manufacturing technologies, and a second qualification phase (for those companies whose mockups pass the first phase) for the fabrication of full-scale inner vertical target prototypes.

Two French consortiums (ALCEN-ATMOSTAT and CNIM-TPI) and the German firm Research Instruments have joined the already approved contractor Ansaldo Nucleare (Italy) in a bid to pre-qualify as European Domestic Agency suppliers.

For the European Domestic Agency, contracting with different suppliers not only ensures competition, but also contributes toward mitigating technical risks through the development of different technologies. "We are working to find the right compromise," says Patrick Lorenzetto, project manager for Europe's in-vessel team. "We need enough companies for the pre-qualification stage in order to have enough competition when we then get to the qualification stage."

With the framework contract signatures now in place, the companies will have approximately 18 months for the manufacturing of the small-scale inner vertical target mockups.

Read the full story on the European Domestic Agency website.


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