Despite the pandemic, US ITER made great strides over the past year.
The US is responsible for 100% of the central solenoid (CS) magnet, including design, R&D, fabrication of 7 CS modules using supplied conductor (from Japan), associated structure, assembly tooling, bus extensions, and cooling connections.
The central solenoid serves as the backbone of the ITER magnet system. The CS induces the majority of the magnetic flux change needed to initiate the plasma, generate the plasma current, and maintain this current during the burn time. The CS is made of six independent coil packs that use a niobium-tin (Nb3Sn) cable-in-conduit superconducting conductor, held together by a vertical pre-compression structure. The conductor will be produced in unit lengths up to 910 m. The US is responsible for the 6 modules of the CS, a spare module, and the structure that ties them together and links these modules to the rest of the magnet system.
How are we building one of the world's largest superconducting electromagnets for ITER? Watch Building the Heart of ITER.
For more information, contact Graham Rossano, US ITER Project Office Magnet Systems Team Leader (Acting), Oak Ridge National Laboratory, email@example.com | 865-576-0104.
The first two poloidal field coil magnets have been positioned in the tokamak pit.
The first of six superconducting magnet modules for the ITER central solenoid left General Atomics’ Magnet Technologies Center in Poway, California for the ITER site in France. The second module will depart later this summer. The international ITER fusion facility under construction in France has already begun initial tokamak assembly activities; the central solenoid is expected to be installed in 2023.
As Oak Ridge National Laboratory’s Material Plasma Exposure eXperiment (MPEX) prepares for the start of fabrication, ORNL’s Phil Ferguson credits US ITER staff for sharing hard-earned expertise to help jump-start the design of the MPEX superconducting magnet system.
Building the Heart of ITER
The team is nearing completion of the delivery of critical support structures that will surround and stabilize the central solenoid.
After enduring a battery of rigorous tests, the first of seven superconducting magnet modules that will make up the heart of the ITER international fusion reactor earned a clean bill of health.