how one can estimate a progress of a given design? For example on the photo there are no walls protecting the people in the lab from neutrons. Even the fusor 60 years ago running at 100KV already generated neutron flux requiring such walls.
There's absolutely no way to get fusion with permanent magnets and copper coils.
This is a plasma test stand, and because it is so simple, you can potentially quickly iterate through different field configurations. This is at least a little bit useful, because a full Stellerator is extremely complicated to take apart, so you can't just change the coils around if you want to change something.
