ASTRA reactor

The ASTRA (Autonomous Spherical Torus Reactor Assembly) is a pressurized heavy water-cooled, magnetized target thermonuclear fusion reactor developed at JVIT's Experimental Plasma Lab for Neogen. ASTRA is the world's only operational fusion reactor technology, five units of which have been produced—the original reactor developed at JVIT, and four commercially manufactured units currently in use by New Canaan Fusion Station.