Fusion power would allow electricty to be generated using the same processes taking place in the Sun (Photo: NASA)
Physicists Luis Delgado-Aparicio and David Gates who have developed a theory that could, if proven, help fusion power become a reality (Photo: Elle Starkman, PPPL Office of Communications)
While solar power harnesses energy produced by the Sun, fusion power seeks to harness the very process used by the Sun to generate a practically limitless supply of clean electricity. Despite decades of research and numerous breakthroughs, “net-gain” nuclear fusion is yet to appear. One of the hurdles is the so-called density, or Greenwald, limit that sees the plasmas within experimental fusion reactors (called tokamaks) spiraling apart and disrupting the fusion process. Now scientists have come up with a new theory as to why this occurs that, if proven, could provide a way to clear the density limit hurdle.
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