There are no "magnets" at this point, so not sure what he is talking about. Basically they are building up HTS Twisted Stacked-Tape Cables (TSTC) and they plan on building their first full-size prototype coil in 2020.
Current tests include subjecting conductors to a 13T field in a 700mm chamber at the National Institute for Fusion Science (NIFS) in Japan. One of the key properties of HTS is that they maintain superconductivity at high magnetic fields.
Current tests include subjecting conductors to a 13T field in a 700mm chamber at the National Institute for Fusion Science (NIFS) in Japan. One of the key properties of HTS is that they maintain superconductivity at high magnetic fields.
Some slides from a recent talk discussing this phase of research: https://indico.cern.ch/event/775529/contributions/3309887/at...