Subscribe options

Select your newsletters:


Please enter your email address:

@

News & Media

Latest ITER Newsline

  • Computer-Aided Design | A new platform with Australia

    In September 2016, the signature of a Cooperation Agreement between the Australian Nuclear Science and Technology Organisation (ANSTO) and the ITER Organization [...]

    Read more

  • Ten years later | A prodigious adventure

    ITER began its existence as an aspiration in the early 1980s, as actors in the fusion community called for the joint machine that would demonstrate the feasibil [...]

    Read more

  • Image of the week | An impromptu visit

    Afteraddressing the UN Climate Change Conference on 15 November, French President Emmanuel Macron toured thecolourful COP23 exhibition zone. It was towards the [...]

    Read more

  • Cryoplant | How to install a compressor

    In order to properly install a helium compressor skid on its concrete pad, you need to start with a large push broom to sweep away the dust that inevitably accu [...]

    Read more

  • Magnetic system | Nine rings to fight the force

    Work on the pre-compression ringsof the ITER magnet system progresses in Europe, where work on a full-scale prototype is underway. These technically challenging [...]

    Read more

Of Interest

See archived articles

Naka checks ITER heartbeat

Lynne Degitz, US ITER

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