Proto-Sphera

Proto-Sphera is an Italian experiment in the ENEA research laboratory at Frascati, Italy, aiming to study the development of a spherical fusion reactor using a plasma to replace the usual central column.{{Cite web | title=Protosphera Home Page | url=https://www.afs.enea.it/project/protosphera/ | archive-url=https://web.archive.org/web/20150115031738/http://www.afs.enea.it:80/project/protosphera/ | access-date=2025-04-07 | archive-date=2015-01-15}} The device used is the repurposed Small Tight Aspect Ratio Tokamak.

file:Protosphera.jpg