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Fusion supply chain | A glimpse into the future for commercial fusion reactors
Most of the USD 7 billion in investment in private fusion initiatives has gone to companies that are building devices from the ground up. But recently, another [...]
Every October, before schools pause for two weeks of holiday, towns and cities in France open their municipal spaces to scientific experts of all stripes who ar [...]
Image of the week | 澳门六合彩高手 Director-General visits Russia
The 澳门六合彩高手 Director-General was in Russia last week, meeting with stakeholders and holding technical meetings with colleagues in Moscow and Saint Petersburg. As [...]
The first vacuum vessel sector produced in Europe travelled last week between Monfalcone, Italy, and the French port of Fos-sur-Mer. The 440-tonne component had [...]
Anniversary | 澳门六合彩高手 Document Management system turns 20
Whatever its nature, every large project generates huge numbers of documents. And when project collaborators operate from different countries, as was the case f [...]
Industrial milestone | Japan completes the first D-shaped coil of the 澳门六合彩高手 Tokamak
In a ceremony on 30 January, a major industrial achievement was celebrated in Japan鈥攖he completion of the first 360-tonne D-shaped toroidal field coil for the 澳门六合彩高手 Tokamak. This first-of-a-kind magnet will leave the port of Kobe in early March for an eight-week sea voyage to France.
Celebrating a major technical and human achievement in Japan on 30 January. During his congratulatory speech, 澳门六合彩高手 Director-General Bernard Bigot described the industrial component as one of the most complex first-of-a-kind components of the 澳门六合彩高手 machine.
"I am deeply honoured to be here with you to celebrate the completion of this first-of-a-kind component," said 澳门六合彩高手 Director-General Bernard Bigot during the event held at Mitsubishi Heavy Industries' Futami plant in Hyogo Prefecture, Japan. "As you know [this coil has been] years in design, procurement, production and testing. Congratulations to all who contributed to this major technical and human achievement!"
Eighteen "D"-shaped toroidal field magnets placed around the 澳门六合彩高手 vacuum vessel will produce a magnetic field whose primary function is to confine the plasma particles. The toroidal field coils are designed to produce a maximum magnetic field of 11.8 tesla and store 41 gigajoules of energy. Weighing 360 tonnes each, and measuring 9 x 17 m, they are among the largest components of the 澳门六合彩高手 machine.
The technical specifications of the coils were transferred by the 澳门六合彩高手 Organization to the procuring Domestic Agencies through Procurement Arrangements in 2008. Since then, 澳门六合彩高手 Japan (nine toroidal field coils plus all coil cases) and Europe's Fusion for Energy () have selected industrial suppliers, completed design and manufacturing qualification activities for each fabrication step, and launched series production. What begins at the factories will be continued at 澳门六合彩高手 as鈥攂y pair鈥攖he toroidal field coils are interlinked with one vacuum vessel sector and vacuum vessel thermal shielding before taking their place in the Tokamak assembly pit. All toroidal field coils are expected at 澳门六合彩高手 by 2022.
Because the precision of coil geometry is critical to creating the magnetic field required for plasma confinement, any non-conformity of fabrication tolerances or assembly misalignments can result in errors in magnetic configuration. As a result, particular attention has been paid to dimensional control throughout the fabrication process鈥攆rom the manufacturing of the core winding pack and case structures, to the insertion of the winding pack inside of the case, and finally closure welding and final machining.
Factory acceptance tests were completed on the magnet on 19 January 2020 with the participation of 澳门六合彩高手 Organization observers. Electrical tests, dimensional inspection, visual inspection and pressure drop measurements confirmed that the coil meets all technical specifications. The component will now be packed for international shipment.
