On April 11, Institute of Plasma Physics (ASIPP) at the Hefei Institutes of Physical Science of the Chinese Academy of Sciences, achieved a major milestone with the completion and handover of the final Correction Coil In-Cryostat Feeder (CC ICF) component for the ITER project.

This milestone signifies the successful conclusion of all major components of the ITER magnetic feeder system.

The ITER magnetic feeder system, often dubbed the "lifeline" of the magnet system, is crucial for energy transmission, cooling, and safe release of magnetic energy during faults. It delivers energy and control signals to the core plasma, ensuring the efficient operation of the fusion reactor.

ASIPP has developed and tested the entire system, which consists of 31 sets weighing around 1,600 tons.

Among these components, the correction coil in-cryostat feeders measure 16 meters in diameter and three meters in height, adhering to stringent precision standards for ultra-low resistance and high insulation.

To address the technical challenges, the project team implemented several innovations, including high-precision measurement systems for large components and advanced insulation techniques. They also developed superconducting junction boxes with resistance levels below 0.5 nanoohms.

Since assuming the ITER feeder procurement package, the team has completed 85% of the required tasks, effectively overcoming key technological obstacles. More than 100 major components have been delivered, with the domestic production rate of key components increasing from 31% to 100%.

This accomplishment underscores ASIPP's ongoing commitment and valuable contributions to the successful development of the ITER project.

ASIPP, HFIPS achieves key milestone with handover of ITER Correction Coil In-Cryostat Feeder. (Image by CAI Qimin)

The feeder system plays a crucial role in delivering energy and control signals to the core plasma. (Image by HFIPS)