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Problems will require in-depth examination and ‘time and budget’ to repair October 2022 file photo of the 30-metre-deep pit in the tokamak building being prepared for the Iter machine itself. Courtesy Iter. Defects have been identified in two key First-of-a-kind tokamak components for the International Thermonuclear Experimental Reactor (Iter) nuclear fusion plant under construction at Cadarache in southern France, with the €20bn project facing potential delays while repairs are carried out.

Iter said in a project update that the two components are the vacuum vessel thermal shields and the vacuum vessel sectors.

The issues “demand in-depth examination, creativity in devising corrective actions, and time and budget to repair”, Iter said.

The vacuum vessel thermal shields are actively cooled silver-plated elements, 20 mm thick that contribute to thermally insulating the plant’s superconducting magnet system operating at 4K, or minus 269C.

Date: Thursday, 24 November 2022
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The International Thermonuclear Experimental Reactor (ITER) project has announced defects have been discovered in the thermal shields and vacuum vessel sectors and warned that the consequences on schedule and cost "will not be insignificant".

Date: Wednesday, 23 November 2022
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At its Thirtieth Meeting on 15-16 June 2022, the ITER Council convened to assess the progress of the ITER Project, concluding that: “The project has maintained steady progress, reflecting the efforts of the ITER Organisation (IO) and Domestic Agencies (DAs) to succeed in the delivery of components and worksite installation and assembly activities.”

Date: Wednesday, 22 June 2022
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Oxford-based Tokamak Energy has announced the breakthrough design of cryogenic, or very low temperature, power electronics technology for the high-efficiency operation of its superconducting magnets. This will result in reduced costs of future fusion power plants – which is key to commercialising and scaling the technology.

Date: Wednesday, 22 December 2021
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Tokamak Energy of the UK announced it has demonstrated a transformative magnet protection technology that improves the commercial viability of fusion power plants, delivering higher performance than alternative magnet systems. It said results from the latest tests validate a revolutionary approach to scaling up high-temperature superconducting (HTS) magnets, which are highly resilient to plasma disruptions.

Date: Saturday, 25 September 2021
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Nuclear fusion developer Tokamak Energy said it has demonstrated a "transformative magnet protection technology" that improves the commercial viability of fusion power plants.

Date: Friday, 24 September 2021
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Fusion energy developer Helion Energy has broken ground on a new facility in Everett, Washington, which will house its seventh generation fusion prototype, known as Polaris. Construction of the facility, which will also produce helium-3 fuel, is expected to be completed in early-2022. Meanwhile, General Fusion and Canadian Nuclear Laboratories are to collaborate on the development of tritium extraction techniques for use in commercial fusion power plants.

Date: Friday, 30 July 2021
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At its 28th Meeting on 16-17 June, the ITER Council convened via remote video conference to assess the latest progress reports and performance metrics of the ITER Project. The International Thermonuclear Experimental Reactor (ITER) under construction in Saint-Paul-lès-Durance in southern France is a first-of-a-kind global collaboration. Construction of ITER is funded mainly by the European Union (45.6%) with the remainder shared equally by China, India, Japan, Korea, Russia and the USA (9.1% each). However, in practice, the members deliver little monetary contribution to the project, instead providing ‘in-kind’ contributions of components, systems or buildings.

Date: Wednesday, 23 June 2021
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Japan’s Toshiba Energy Systems & Solutions (Toshiba ESS) announced on 8 June that it had manufactured the first of four toroidal field coils for the International Thermonuclear Experimental Reactor (Iter) under construction in Saint-Paul-lès-Durance in southern France. Under a contract concluded in May 2014 with the Japan Atomic Energy Agency (JAEA), Toshiba ESS is manufacturing four toroidal field coils, and six coil cases. The first coil case was completed in December 2018. Toshiba said the coil is one of the largest in the world - 16.5 metres in height, 9 metres in width, with a gross weight of approximately 300 tons. The toroidal field coils are huge superconducting magnets, that will generate the magnetic cage to contain the ITER fusion reactor's plasma. The reactor is scheduled to achieve first plasma in 2025.

Date: Friday, 11 June 2021
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Japan's Toshiba Energy Systems & Solutions Corporation (Toshiba ESS) announced today it has completed the manufacture of the first of four toroidal field coils it is supplying to the International Thermonuclear Experimental Reactor (ITER) project. Nine of ITER's 18 toroidal field coils, plus a spare, are being fabricated in Europe with the other nine being made in Japan. Gigantic superconducting magnets, they will generate the magnetic cage to contain the ITER fusion reactor's plasma.

Date: Wednesday, 09 June 2021
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