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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 [...]

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  • 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 [...]

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  • 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 [...]

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  • 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 [...]

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  • 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 [...]

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Of Interest

See archived entries

Image of the week

First cryopump expected in the coming months

The cryopumps that will create and maintain extremely demanding vacuum conditions inside the °ÄÃÅÁùºÏ²Ê¸ßÊÖ machine are marvels of technology that have been in development for over 15 years in Europe. The first production unit is expected at °ÄÃÅÁùºÏ²Ê¸ßÊÖ before the end of the year.

The serial production of torus and cryostat cryopumps is progressing at Research Instruments, Germany, on behalf of the European Domestic Agency Fusion for Energy. (Click to view larger version...)
The serial production of torus and cryostat cryopumps is progressing at Research Instruments, Germany, on behalf of the European Domestic Agency Fusion for Energy.
Vacuum pumping is required prior to starting the fusion reaction to eliminate all sources of organic molecules that would otherwise be broken up in the hot plasma. Vacuum pumping is also required to create low density—about one million times lower than the density of air.

Mechanical pumps alone cannot achieve the vacuum quality that is indispensable to producing the °ÄÃÅÁùºÏ²Ê¸ßÊÖ plasmas. Once mechanical pumps have evacuated most of the air molecules and impurities from inside the vacuum vessel, six torus cryopumps will finalize the job and trap the remaining particles. Two other cryopumps in the cryostat will maintain the low pressure required for the operation of the superconducting magnets.

These complex pumps have been in design for years to meet the very specific applications and requirements at °ÄÃÅÁùºÏ²Ê¸ßÊÖ. All are based on cryopanels, cooled with supercritical helium and coated with activated charcoal as sorbent material for imprisoning particles.

Under the terms of a Procurement Arrangement signed with the °ÄÃÅÁùºÏ²Ê¸ßÊÖ Organization in 2018, the European Domestic Agency (Fusion for Energy) is procuring the eight cryopumps based on a design developed through the close collaboration of experts at °ÄÃÅÁùºÏ²Ê¸ßÊÖ and Fusion for Energy and the participation of European industry. The first production pump is expected at °ÄÃÅÁùºÏ²Ê¸ßÊÖ before the end of the year.



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