Subscribe options

Select your newsletters:


Please enter your email address:

@

News & Media

Latest ITER Newsline

  • Worksite | First pillars for the crane hall

    For the overhead cranes to deliver machine components into the Tokamak assembly pit, the rails that carry them need to be extended some 80 metres beyond the tem [...]

    Read more

  • Transport | 300 tonnes of equipment on its way to ITER

    A specially designed assembly tool and elements of the cryostat and vacuum vessel thermal shields are part of the shipments travelling now from Korea to ITER. W [...]

    Read more

  • Fusion world | A new tokamak in town

    After EAST in China and WEST in France, another of the cardinal points of the compass has been chosen to name a tokamak. Introducing NORTH—the NORdic Tokamak de [...]

    Read more

  • Opportunities | Bringing the ITER Business Forum to Washington

    Every second year, a two-day ITER Business Forum is held to invite existing and potential suppliers for the ITER Project—laboratories, universities, and compani [...]

    Read more

  • World Energy Congress | Fusion "at a time of transition"

    In the United Arab Emirates, Abu Dhabi is often referred to as a tourism hotspot that combines luxury and ancient traditions. In September, Abu Dhabi was in the [...]

    Read more

Of Interest

See archived entries

Smallest ring magnet takes shape in Russia

Alexander Petrov, ITER Russia

The first of eight winding packs for poloidal field coil #1 (PF1) undergoes epoxy impregnation at the Srednenevsky Shipbuilding Plant in Saint Petersburg, Russia. The resin—acting inside of a sealed mould and under the effect of heat—hardens the tape to bond each double pancake into a rigid assembly. (Click to view larger version...)
The first of eight winding packs for poloidal field coil #1 (PF1) undergoes epoxy impregnation at the Srednenevsky Shipbuilding Plant in Saint Petersburg, Russia. The resin—acting inside of a sealed mould and under the effect of heat—hardens the tape to bond each double pancake into a rigid assembly.
The fabrication of poloidal field coil #1 (PF1)—one of ITER's six ring-shaped magnets—is in progress at the Srednenevsky Shipbuilding Plant in Saint Petersburg, Russia, where specialists from JSC "SNSP" and the Efremov Institute (NIIEFA) are winding the second double pancake of the future coil.

Poloidal field coils are built from niobium-titanium (NbTi) superconductors that are wound into flat coils called pancakes. Winding is a multistage process during which conductor from two spools ("double-hand") is wrapped with insulating tape and wound into the dimensions corresponding to each coil.

Because they are key to the successful operation of the machine, the magnets are subject to strict ITER Organization requirements at every stage of the manufacturing process, from qualifying materials to controlling the properties of the finished items. The Russian specialists first received the green light on a full-scale prototype double pancake before starting serial production.

Most of the winding equipment has been designed, manufactured, and tested at the Efremov Institute, which also developed some of the poloidal field coil manufacturing processes; JSC "SNSP" has contributed a number of science-based technologies. In 2014, all equipment was transported to the Srednenevsky Shipbuilding Plant, located in an area which is a well suited to the needs of transporting the completed component.

Eight double pancakes will be stacked to form the final coil, which will weigh 300 tonnes.


return to the latest published articles