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

  • Fuelling fusion | The magic cocktail of deuterium and tritium

    Nuclear fusion in stars is easy: it just happens, because the immense gravity of a star easily overcomes the resistance of nuclei to come together and fuse. [...]

    Read more

  • 360° image of the week | The cryoplant

    Cryogenics play a central role in the ITER Tokamak: the machine's superconducting magnets (10,000 tonnes in total), the vacuum pumps, thermal shields and so [...]

    Read more

  • Central solenoid assembly | First sequences underway

    What does it take to assemble the magnet at the heart of ITER? Heavy lifting, unerring accuracy, and a human touch. The central solenoid will be assembled from [...]

    Read more

  • Assembly | The eyes of ITER

    Supervisors ensure compliance and completion as machine and plant assembly forges ahead. In Greek mythology, Argus was considered an ideal guardian because his [...]

    Read more

  • Component repairs | Removing, displacing and disassembling

    A good repair job starts with a cleared workbench, the right tools on hand and a strong vise. This axiom, true for odd jobs in a home workshop, is also true for [...]

    Read more

Of Interest

See archived entries

Tore Supra antenna to be fitted into EAST

With some maintenance and adaptation, the ITER-like antenna that Tore Supra tested in 2007-2008 will fit perfectly into the Chinese tokamak EAST. (Click to view larger version...)
With some maintenance and adaptation, the ITER-like antenna that Tore Supra tested in 2007-2008 will fit perfectly into the Chinese tokamak EAST.
Last Wednesday, Tore Supra shipped a large parcel to China. The four-metre-long box, weighing 2.3 tonnes, was addressed to EAST, the superconducting tokamak that the Chinese Academy of Sciences Institute of Plasma Physics (ASIPP) operates in Hefei.

The box contained an "ITER-like" ion cyclotron resonance heating (ICRH) prototype antenna that Tore Supra, the tokamak that CEA-Euratom operates in Cadarache, had tested during a six-month campaign in 2007-2008 in collaboration with Oak Ridge National Laboratory (ORNL) in the US.

The collaboration was recently extended to China; now the joint experimental program to prepare for ITER operations will continue on EAST as soon as the antenna is fitted to the machine.

"This antenna is what we call 'load resilient'," explains Gilles Lombard, a Tore Supra engineer specialized in high frequency heating. "This means that it can withstand strong charge variations like the ones that edge localized modes (ELMs) generate on the edges of the plasma."

ITER personnel from China gather around the ITER-like antenna as it is beinng packed before shipment to Hefei via Shanghai. (Click to view larger version...)
ITER personnel from China gather around the ITER-like antenna as it is beinng packed before shipment to Hefei via Shanghai.
As a circular tokamak with no divertor, Tore Supra does not access the "H Mode" that generates ELMs. "However, the charge variations can be mimicked by injecting gas into the plasma at supersonic speed," explains Xavier Litaudon, Head of Plasma Heating and Confinement at CEA-IRFM, the Research Institute on Magnetic Fusion that operates Tore Supra.

Tore Supra used this technique to establish the "proof of principle" of the ITER-like antenna and to validate the codes for electromagnetic calculations that are used to design the actual ITER antenna.

The antenna—which had been in storage for three years—needed a bit of dusting. With some maintenance and adaptation, it will fit perfectly into EAST, a machine about the same size as Tore Supra ... but "H mode" capable.

The parcel should arrive in Shanghai by mid-October and be delivered to Hefei in the subsequent weeks.


return to the latest published articles