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Latest ITER Newsline

  • Cross-sector advocacy | The fusion knights

    Developing fusion as a usable energy source requires an all-hands-on-deck approach. At last week's ITER workshop, fusion advocacy organizations showed the role [...]

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  • Knowledge dissemination | ITER enters a shared-information era

    Workshop lays groundwork to provide vast amounts of ITER research and expertise to fusion companies. As ITER embarks on an ambitious initiative to accelerate th [...]

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  • Private Sector Workshop | "How can ITER help?"

    There are many ways to approach the harnessing of fusion energy: one is to optimize or simplify existing concepts; another is to exhume long-abandoned solut [...]

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  • Fusion codes and standards | "Consistency will accelerate global innovation"

    The development of commonly agreed codes and standards for fusion goes right to the heart of ITER's vision of collaboration, recognizing the exceptional dynamis [...]

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  • Industrial ecosystem | Suppliers see growing opportunities

    A diverse group of suppliers described their roles in a growing ecosystem around nuclear fusion and shared their vision of the future. The quest for fusion brin [...]

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Of Interest

See archived entries

Image of the week

Into the depths

The hot and cold basins that are part of the ITER heat rejection system are equivalent in volume to half a dozen Olympic pools. When filled to capacity, the pressure exerted by the water on the bottom slab, walls and joints of the concrete structure is considerable. In mid-October an "assessment of tightness" was performed, during which the basins were "overfilled" with 27,000 m³ of water (7,000 m³ more than their operational volume).

For five days in late November, a diver explored the depths of the heat rejection basins, inspecting the critical zones of the massive concrete structure. (Click to view larger version...)
For five days in late November, a diver explored the depths of the heat rejection basins, inspecting the critical zones of the massive concrete structure.
Under the tremendous pressure exerted by 27,000 tonnes of water, the basins incurred the expected deformations—in the range of 4 to 6 millimetres—before settling. However, operators needed to confirm that no cracks had occurred in the critical zones of the concrete structure such as corners and joints.

And for this, there was only one option: sending a diver into the depths of the basins to see with his own eyes and report back. The operation lasted five days in late November... when even the "hot" basin was extremely cold.



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