Enable Recite

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

  • FEC 2020 | E-conference opens, participation never higher

    The 28th IAEA Fusion Energy Conference (FEC) is off to an auspicious start. Open to the public for the first time thanks to the technical possibilities of an al [...]

    Read more

  • Vacuum vessel in Europe | Fitting the pieces virtually

    A 'virtual fit' tool developed by the European Domestic Agency is helping the vacuum vessel manufacturing team anticipate the challenge of final assembly—the mo [...]

    Read more

  • Gas injection system | Last manifolds completed in China

    Contractors to the Chinese Domestic Agency have completed an important part of the gas injection system—the distribution manifolds that carry gas species from t [...]

    Read more

  • Magnets | Seventh vertical coil reaches ITER

    Seven toroidal field coils have reached ITER in the past year. The latest, TF3 from Europe, passed through the ITER gates on Friday 3 May. The European and Japa [...]

    Read more

  • Tritium Building | Work resumes

    The energy-producing plasmas in ITER will be fuelled in equal measure by the hydrogen isotopes deuterium and tritium. Deuterium is a stable element that industr [...]

    Read more

Of Interest

See archived entries

Naka checks ITER heartbeat

The insert coil is lowered into the test facility at Naka, Japan. Photo: JAEA (Click to view larger version...)
The insert coil is lowered into the test facility at Naka, Japan. Photo: JAEA
In another step towards building the ITER fusion reactor, the US ITER team has worked with international partners to verify the performance of the ITER central solenoid conductor. Using a US-designed "insert coil" (a test coil inserted in a large, high-field magnet), the international team tested the Japanese-manufactured central solenoid conductor at the Japan Atomic Energy Agency test facility in Naka and evaluated the findings. Results showed that the conductor performed as predicted, without degradation.

The ITER central solenoid is under fabrication in the US at a General Atomics facility in Poway, California using conductor provided by Japan. The 1,000-metric-ton electromagnet, known as the "heartbeat" of ITER, will provide the majority of the magnetic flux needed to start and sustain ITER's plasma current. Over 42 kilometres of conductor will ultimately be wound into pancakes and assembled into the modules of the central solenoid. The electromagnet will have a magnetic field strength of up to 13 Tesla, or about 260,000 times the Earth's magnetic field.

"The testing in Naka verified conductor performance under conditions comparable to what the conductor will experience inside the ITER Tokamak—including temperature, magnetic field, current, and mechanical strain," said US ITER magnet team leader Wayne Reiersen.

Testing conductor before it is installed in the ITER machine is part of confirming the ITER design and assuring that the conductor will perform in the demanding ITER environment. ITER, which will be the largest tokamak ever built, will employ multiple superconducting magnet systems to confine plasma of over 100 million degrees within a vacuum vessel inside the 10-story-tall tokamak.

Read the full report of the test results on the US ITER website.


return to the latest published articles