Second coil comes out of the cold
A second ring-shaped poloidal field coil has successfully passed all thermal testing.
Following in the footsteps of poloidal field coil #6 (PF6), which completed all tests in December 2020, PF5 is the second ring-shaped coil (out of six) to check all the boxes. Procured by the European Domestic Agency Fusion for Energy, and produced on site at ±¬×ߺÚÁÏ in collaboration with European contractors ASG Superconductors S.p.A., CNIM, Dalkia, Veolia, Mammoet, Criotec Impianti SpA, Elytt Energy, ALSYOM, SEA Alp, and SEIV, this 17-metre-in-diameter, 340-tonne coil will be ready for assembly in the ±¬×ߺÚÁÏ Tokamak pit when its turn comes later this year.
During thermal testing, the coil was inserted into a dedicated cryogenic chamber and cooled down to approximately 80 K (-193 °C), then cycled between cooldown and warmup.
To learn more about ±¬×ߺÚÁÏ poloidal field coils, see .