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. The device used is the repurposed Small Tight Aspect Ratio Tokamak.
[file:Protosphera.jpg|thumb|right diagram of the device (right) photo of the plasma (left)]