Subscribe options

Select your newsletters:

Please enter your email address:

@

Your email address will only be used for the purpose of sending you the ITER Organization publication(s) that you have requested. ITER 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 ITER Organization.

For more information, see our Privacy policy.

News & Media

Latest ITER Newsline

  • Vacuum components | Shake, rattle, and... qualify!

    A public-private testing partnership certified that ITER's vacuum components can withstand major seismic events. Making sure the ITER tokamak will be safe in th [...]

    Read more

  • Feeders | Delivering the essentials

    Like a circle of giant syringes all pointing inward, the feeders transport and deliver the essentials to the 10,000-tonne ITER magnet system—that is, electrical [...]

    Read more

  • Image of the week | It's FAB season

    It's FAB season at ITER. Like every year since 2008, the Financial Audit Board (FAB) will proceed with a meticulous audit of the project's finances, siftin [...]

    Read more

  • Disruption mitigation | Final design review is a major step forward

    The generations of physicists, engineers, technicians and other specialists who have worked in nuclear fusion share a common goal, dedication and responsibility [...]

    Read more

  • Image of the week | Like grasping a bowl of cereal

    Contrary to the vast majority of ITER machine components, the modules that form the central solenoid cannot be lifted by way of hooks and attachments. The 110-t [...]

    Read more

Of Interest

See archived entries

Cryoline network

Now the vertical spools

At the L3 level of the Tokamak Building, ceiling height in some galleries exceeds 10 metres. But when it comes to lifting a cryoline spool, tilting it 90 degrees and inserting it into a vertical shaft that connects to lower levels, this headroom turns out to be barely sufficient.

This L3 gallery is just tall enough to permit the handling, by telescopic spider crane, of the 1.5-tonne, 11-metre-long spool. On 16 June it was inserted into the narrow ''south shaft'' connecting L3 to B2, which is designed to host this line and one other. (Click to view larger version...)
This L3 gallery is just tall enough to permit the handling, by telescopic spider crane, of the 1.5-tonne, 11-metre-long spool. On 16 June it was inserted into the narrow ''south shaft'' connecting L3 to B2, which is designed to host this line and one other.
The cryolines form a five-kilometre network of sophisticated piping that originates in the ITER cryoplant before crossing over a bridge to the Tokamak Complex to distribute cooling fluids to the Tokamak's components and systems.

The better part of the network ends up in the basement of the building (B2 level), where it branches out in two directions: laterally towards the magnet feeders and up overhead through vertical shafts to the auxiliary cold boxes located at L3 level.

Cryoline installation at the B2 level, which began in September 2019, is now complete. On Tuesday 16 June, the first spool of the vertical "lines" connecting to the L3 level was successfully inserted into the south shaft. The south shaft will accommodate two lines; at the opposite end of the gallery, the north shaft will accommodate five. All will connect to the auxiliary cold boxes that will be installed in 2022.

When everything is in place, the system will be able to feed a constant flow of cooling fluids to the different "clients" inside the machine: 25 tonnes of supercritical helium at 4 K (minus 269 °C) to 10,000 tonnes of superconducting magnets plus cryopumps, and gaseous helium at 80 K (minus 193 °C) to the thermal shield.



return to the latest published articles