u/Corealist

while looking at the differences between tokamaks and stellarators, I found the following ( unpublished) article about the Thea Helios reactor. (https://thea.energy/wp-content/uploads/2025/12/20251210\_FPP\_Helios\_overview\_paper.pdf).

To me this seems to be a well thought out reactor design with realistic design goals, but I am not an expert. The only thing that seems problematic is the size, which in my opinion would probably make the reactor too expensive to build.

I would be interested in the opinion of people with fusion expertise on this reactor.