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News & Media

Latest ITER Newsline

  • Blanket shield blocks | Full-scale prototype passes key test in China

    A full-scale prototype of a blanket shield block manufactured in China successfully passed acceptance tests, including the challenging hot helium leak testing i [...]

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  • US Congressional hearing | Strong bipartisan support expressed

    'For I dipped into the future, far as human eye could see,Saw the Vision of the world and all the wonder that would be.' In the hearing room of the United Sta [...]

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  • Plasma heating | Demonstrating neutral beam injection at ITER scale

    The critical technologies of neutral beam injection—the workhorse of ITER plasma heating—will be demonstrated in advance of ITER operation at a test facility lo [...]

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  • Tokamak Complex | A temporary roof for the bioshield

    In August of last year, a circular platform—the 'lid'—was installed deep inside of the ITER bioshield, effectively splitting the well-shaped work area into two. [...]

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  • Fusion world | 210 papers presented at KSTAR conference

    The superconducting tokamak KSTAR has been in operation at the National Fusion Research Institute in Daejeon, Korea, since 2008. The KSTAR conference, held a [...]

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Of Interest

See archived articles


A vertical displacement event

Three vertical storage tanks have been installed since last week outside of the cryoplant. The operation requires two powerful cranes working in tandem but also the strength of many arms ...

Installed vertically because of space constraints, six identical tanks will store 380 cubic metres of gaseous helium each at a pressure of 22 bars. (Click to view larger version...)
Installed vertically because of space constraints, six identical tanks will store 380 cubic metres of gaseous helium each at a pressure of 22 bars.
There are 36 semicircular openings at the base of each tank, corresponding to 36 steel rods deeply anchored into the 2.5-metre thick concrete platforms that have been built to receive them. Each tank stands 20 metres high and weighs 150 tonnes.

As the crawler crane seize a tank by its "ears" (two cylindrical protrusions called "trunnions" located at the upper end of the component), and as the telescopic crane slowly lifts its lower end, one wonders how the required alignment will be achieved.

One hour later, the question can be answered. The crawler crane positions the tank vertically and leaves it hovering a few centimetres above the rods. Three men weigh in with all their strength on the bottom rim: a few pushes to the right, a few pulls to the left, a tilt inward and a small rotational movement and everything falls into alignment. The crane operator can then carefully lower the tank so that all 36 rods slide into their corresponding holes, ready to be bolted.

Last Wednesday's operation was a spectacular first. By the end of the week it was routine and as of today's Newsline, three tanks are in place.

Installed vertically because of space constraints, the six tanks, procured by Europe, will each store 380 cubic metres of gaseous helium at a pressure of 22 bars. They will act as buffers for certain phases of operations and also as storage when ITER is not running.

Read a full report on the European Domestic Agency website.

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