Research & Applications

摘要

A high-temperature superconducting (HTS) magnet reached and maintained a magnetic field of more than 20 tesla in steady state for about five hours on September 5 at the Massachusetts Institute of Technology's Plasma Science and Fusion Center. Not only is the magnet the strongest HTS magnet in the world by far, it is also large enough-when assembled in a ring of 17 identical magnets and surrounding structures-to contain a plasma that MIT and Commonwealth Fusion Systems (CFS) hope will produce net energy in a compact tokamak device called SPARC in 2025, on track for commercial fusion energy in the early 2030s.