Purely for the esoteric linguistic amusement: tokamak is a Russian acronym where the "toka-" comes from тороидальная камера or toroidal chamber/cabin. So a spherical tokamak would be a 'spherical toroid', and a bit oxymoronic. By the bye, is there a likely set of pro/cons as compared to the stellarator configuration? (https://en.wikipedia.org/wiki/Wendelstein_7-X) It's at least interesting that "stellarator" appears in the posting's address: GPS: 100 Stellarator Road.