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

  • Neutral beam power | "Outside and beyond anything"

    In an empty plot on the ITER platform, preparatory works have started for the construction of two new buildings. From the outside, they will look like ordinary [...]

    Read more

  • Systems installation | Anticipation and flexibility

    It is a subterranean world of scaffolding and supports, piping and cables, concrete and embedded plates. To the untrained eye, the activity underway in the base [...]

    Read more

  • Image of the week | Keeping an eye on the hot (double) pancake

    An ITER ring-shaped coil begins its existence as cable-in-conduit conductor, wound into 'double pancakes' that are eventually stacked one upon the other to form [...]

    Read more

  • Cryostat thermal shield | A "strong back" for a fragile component

    The lower cylinder thermal shield is a large silver-plated component, circular in shape and five metres tall, which fits inside the depression in the cryostat b [...]

    Read more

  • Diagnostic shielding | B4C ceramic bricks prove their worth

    A number of materials can effectively shield diagnostic equipment from the neutron flux coming from the plasma. To find the best one, the diagnostics team at IT [...]

    Read more

Of Interest

See archived entries

What's in the box?

At ITER, even the opening of a box takes on a spectacular dimension. The operation requires a powerful crane, a full team of specialists and, as everything ITER, the utmost care and precision.

A ''box-opening'' operation took place last week at the entrance of the ITER site where large components are stored. Three large elements of the liquid helium plant (''cold boxes'') were uncovered to prepare for their transport and installation in the ITER cryoplant. (Click to view larger version...)
A ''box-opening'' operation took place last week at the entrance of the ITER site where large components are stored. Three large elements of the liquid helium plant (''cold boxes'') were uncovered to prepare for their transport and installation in the ITER cryoplant.
The box-opening operation that unfolded on 13-14 June gave access to cryoplant equipment that had been sitting for several months in temporary storage—three 135-tonne "refrigerators" ("cold boxes") and their corresponding "warm panels."

But instead of removing the components from the boxes, the boxes were removed from the components—an operation that consisted in lifting the box tops (heavy wooden crates actually) that had served to protect the components during transport and storage.

Manufactured by the French company Air Liquide, the cold boxes contain the heat exchangers, turbines, valves, and filters that will cool and liquefy the large volumes of helium needed by cryogenic "clients" in the Tokamak Building (the magnets, thermal shield and cryopumps).

Composed of a complex arrangement of pipes, plugs, expansion valves, pressure and flow sensors, the role of the ''warm panels'' is to monitor and protect the processes inside the cold boxes. (Click to view larger version...)
Composed of a complex arrangement of pipes, plugs, expansion valves, pressure and flow sensors, the role of the ''warm panels'' is to monitor and protect the processes inside the cold boxes.
Gaseous helium enters a cold box at ambient temperature and comes out in liquid form at 4.5 K (minus 269 °C). All the processes that take place inside of the cold boxes are implemented under vacuum, in order to limit thermal exchange with the environment, and all components are wrapped in multilayer insulation blankets to protect from heat radiation.

To each cold box a "warm panel" is connected. Composed of a complex arrangement of pipes, plugs, expansion valves, pressure and flow sensors, its role is to monitor and protect the processes inside the cold boxes.

Now that they are free from their casing, the three cold boxes and their corresponding warm panels will be loaded on trailers to travel a few hundred metres to the ITER platform along the heavy haul road.

Once delivered to the cryoplant, they will be installed in the Cold Box Building, validating yet another ITER Council milestone*.

*A set of high-level schedule milestones has been proposed by the ITER Organization to the ITER Council as a way to measure and monitor project progress. "Start of work inside the cryoplant" was an ITER Council milestone scheduled for achievement before the end of Q2 2017.


return to the latest published articles