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Stress corrosion cracking and welding nonconformities are behind ITER’s fresh delays

December 5, 2022, 3:00PMNuclear News

A total of about 23 kilometers (about 14 miles) of piping are welded to the surface of the thermal shield panels. The piping on a vacuum vessel thermal shield panel is clearly visible in this photo. (Photo: ITER Organization)

The ITER Organization is working on a new baseline schedule for the magnetic confinement fusion experiment launched in 1985 and now under construction in southern France. First plasma was scheduled for December 2025 and deuterium-tritium operations for 2035 under a schedule approved in November 2016 that will soon be shelved. In addition to impacts from COVID-19 delays and uncertainty resulting from Russia’s war in Ukraine, ITER leaders must now factor in repair time for “component challenges.”

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Stress corrosion cracking and welding nonconformities are behind ITER’s fresh delays

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