Unfortunately, all existing fusion machines require more energy to operate than they produce. (scientificamerican.com)
Physicists at the U.S. Department of Energy's (DOE) Princeton Plasma Physics Laboratory (PPPL) have helped develop a new computer model of plasma stability in doughnut - shaped fusion machines known as tokamaks. (sciencedaily.com)
JET is widely regarded as the most successful fusion machine in the world and one of the best examples of what European scientific collaboration can achieve. (newscientist.com)