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

  • Assembly | Set of handling tools for in-vessel installation finalized

    Inside of a test facility that reproduces the volume and geometry of the ITER vacuum vessel environment, a team from CNIM Systèmes Industriels has dem [...]

    Read more

  • 360° image of the week | The assembly theatre

    Ever since it was invented almost two centuries ago, photography has tried to capture what the human eye actually sees. Despite huge progress achieved, it has n [...]

    Read more

  • Science | Favourable impurity dynamics in ITER confirmed by experiment

    Recent studies at the JET tokamak confirm the physics basis for tungsten transport at the edge of fusion-producing plasmas in ITER and the project's strategy fo [...]

    Read more

  • Image of the week | 15th D-shaped coil delivered

    Fifteen out of ITER's 19 D-shaped toroidal field coils have been delivered. Toroidal field coils are among the largest and heaviest components of the ITER machi [...]

    Read more

  • Spinoffs | Japan develops first high-output, multi-frequency gyrotron

    Building off expertise developed in the supply of high-power, high-frequency gyrotrons for the ITER Project and the JT-60SA tokamak, Japan's National Insti [...]

    Read more

Of Interest

See archived entries

Fusion world

SOLPS-ITER code used to design new EAST divertor

In order to enhance the power handling capability of the EAST tokamak's lower divertor, scientists put forward a new comprehensive solution called the "corner slot" divertor, which represents an upgrade in both shape and material on this medium-size tokamak that has been in operation in Hefei, China, since 2006.

A module of the new lower divertor on EAST, with horizontal and vertical target plates constituting a right-angled corner. The target plates are made of ITER-like monoblock plasma facing units. (Click to view larger version...)
A module of the new lower divertor on EAST, with horizontal and vertical target plates constituting a right-angled corner. The target plates are made of ITER-like monoblock plasma facing units.
The EAST team at the Institute of Plasma Physics, Chinese Academy of Sciences (ASIPP) has developed and installed a new lower divertor upgrade concept.

This is an actively-cooled tungsten divertor, inspired by the tungsten monoblock technology used to build the ITER divertor. Using the state-of-the-art edge plasma modelling tool SOLPS-ITER, distributed and maintained by the ITER Organization, the team discovered a new divertor operation regime with enhanced performance, relying on the "corner effect."

The corner effect can be achieved if the magnetic separatrix hits the divertor close to (within a centimetre or so) a sharp corner. It promotes plasma detachment, which protects the divertor target surface; such features are also included in the ITER divertor design.

Building an actively-cooled tungsten monoblock divertor with a sharp corner was not without its challenges, however, and a recently published article in Nuclear Fusion details the scientific basis and engineering solutions used for this new hardware. 

See the Chinese Academy Of Sciences press release in English



return to the latest published articles