Subscribe options

Select your newsletters:


Please enter your email address:

@

News & Media

Latest ITER Newsline

  • Neutral beam injection | How ELISE is contributing to ITER

    ITER's neutral beam injection system is based on a radio frequency source that has been the subject of decades of development in Europe. At Max Planck Institute [...]

    Read more

  • Image of the week | Almost there

    The Tokamak Building has reached its maximum height ... in terms of concrete that is. The 'jewel box' in reinforced concrete will grow no more; instead, it will [...]

    Read more

  • Powerful lasers | A mockup to demonstrate safety

    During ITER operation, high-powered lasers will gather important diagnostic information on the properties and behaviour of the plasma, such as density, temperat [...]

    Read more

  • Cryostat | Lower cylinder revealed

    They were all there: those who designed it, those who forged it, those who assembled and welded it, and those who closely monitored the requirements and procedu [...]

    Read more

  • Europe's DEMO | What it could be like

    It looks like ITER, feels like ITER, but it's not ITER. In this depiction of what the site layout for the next-step fusion machine, DEMO, might look like in Eur [...]

    Read more

Of Interest

See archived entries

Winding completed on first central solenoid module

US ITER

The final turns of the first central solenoid module on the winding table at General Atomics. Photo: GA (Click to view larger version...)
The final turns of the first central solenoid module on the winding table at General Atomics. Photo: GA
The US Domestic Agency and vendor General Atomics completed a major milestone on 6 April by winding the first module for the ITER central solenoid. The feat was accomplished at the General Atomics Magnet Development Facility in Poway, California.

Each central solenoid module is fabricated from approximately 6,000 metres of niobium-tin (Nb3Sn) conductor, supplied by Japan in seven spools. The central solenoid, a giant electromagnet considered the "heartbeat of ITER," will consist of six stacked modules surrounded by a support structure.  When assembled, the entire 13 Tesla central solenoid and associated structures will be 13 metres tall and weigh 1,000 metric tons.

Conductor from six spools is wound to form six separate hexapancakes (6 layers) containing 14 turns. The seventh spool is wound to form a quadpancake (4 layers) containing 14 turns.

After winding, the completed hexapancakes and quadpancake will be stacked and joined prior to heat treatment, insulation, vacuum pressure impregnation, and final testing.


return to the latest published articles