°ÄÃÅÁùºÏ²Ê¸ßÊÖ

Subscribe options

Select your newsletters:

Please enter your email address:

@

Your email address will only be used for the purpose of sending you the °ÄÃÅÁùºÏ²Ê¸ßÊÖ Organization publication(s) that you have requested. °ÄÃÅÁùºÏ²Ê¸ßÊÖ Organization will not transfer your email address or other personal data to any other party or use it for commercial purposes.

If you change your mind, you can easily unsubscribe by clicking the unsubscribe option at the bottom of an email you've received from °ÄÃÅÁùºÏ²Ê¸ßÊÖ Organization.

For more information, see our Privacy policy.

News & Media

Latest °ÄÃÅÁùºÏ²Ê¸ßÊÖ Newsline

  • 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 [...]

    Read more

  • Outreach | °ÄÃÅÁùºÏ²Ê¸ßÊÖ @ October science festivals

    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 [...]

    Read more

  • Image of the week | °ÄÃÅÁùºÏ²Ê¸ßÊÖ Director-General visits Russia

    The °ÄÃÅÁùºÏ²Ê¸ßÊÖ Director-General was in Russia last week, meeting with stakeholders and holding technical meetings with colleagues in Moscow and Saint Petersburg. As [...]

    Read more

  • Image of the Week | Sector 5 is on its way

    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 [...]

    Read more

  • Anniversary | °ÄÃÅÁùºÏ²Ê¸ßÊÖ 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 [...]

    Read more

Of Interest

See archived entries

Cryostat

It's happening in the workshop

On a cold night in December 2015, a three-trailer convoy passed through the village of Saint-Paul-lez-Durance, adding its pulsating blue and orange lights to the Christmas illuminations. The convoy carried three 50-tonne steel pieces shaped like so many slices of pie—the first elements of the cryostat base to be assembled on site in the Cryostat Workshop.

Resembling a soup dish, or an upside down hat, the cryostat base is the heaviest single component of the °ÄÃÅÁùºÏ²Ê¸ßÊÖ machine. It is also the first major lift of the °ÄÃÅÁùºÏ²Ê¸ßÊÖ assembly phase. By March 2020, the completion of the Tokamak Building roof and the extension of the assembly crane rails will permit this component to be installed in the Tokamak Pit. (Click to view larger version...)
Resembling a soup dish, or an upside down hat, the cryostat base is the heaviest single component of the °ÄÃÅÁùºÏ²Ê¸ßÊÖ machine. It is also the first major lift of the °ÄÃÅÁùºÏ²Ê¸ßÊÖ assembly phase. By March 2020, the completion of the Tokamak Building roof and the extension of the assembly crane rails will permit this component to be installed in the Tokamak Pit.
Two-and-a-half years later, "physical work" on the 1,250-tonne subcomponent is now finalized. Taking over from the Indian Domestic Agency, which is responsible for the procurement of the cryostat, the °ÄÃÅÁùºÏ²Ê¸ßÊÖ Organization will soon proceed with "pre-assembly work" prior to installing the component in the Tokamak Pit in May 2020.

Pre-assembly work will consist of welding handling and support systems to the base structure, attaching 18 bellows under the component's skirt to connect the machine to the cooling water system, and installing a monorail and small trolley to handle the clamps, shins and other elements needed to interface with the building.

Work has begun in the workshop on the cryostat upper cylinder. Several of the first-tier segments have already been unwrapped and installed on the assembly platform. (Click to view larger version...)
Work has begun in the workshop on the cryostat upper cylinder. Several of the first-tier segments have already been unwrapped and installed on the assembly platform.
With the base completed and the lower cylinder safely encased in its protective cocoon, activity in the Cryostat Workshop is now focused on the upper cylinder. In less than two weeks, three out of six tier-one segments have been positioned on their assembly frame. Due largely to the lessons learned in the assembly and welding of the lower cylinder, work is progressing at an exceptionally fast pace.

See the gallery below for more details.
 
 


return to the latest published articles