lawrence livermore national laboratory

  • New Fusion Record Achieved in Tungsten-Encased Reactor

    New Fusion Record Achieved in Tungsten-Encased Reactor

    A tokamak in New Jersey set a new record in fusion plasma by encasing its reaction in tungsten, a heat-resistant metal that allows physicists to sustain hot plasmas for longer, and at higher energies and densities than carbon tokamaks. A tokamak is a torus- (doughnut-) shaped fusion device that confines plasma using magnetic fields, allowing…


  • South Korea’s Artificial Sun Is Cooking 100-Million-Degree Plasma

    South Korea’s Artificial Sun Is Cooking 100-Million-Degree Plasma

    The Korea Institute of Fusion Energy has installed a new diverter in the KSTAR tokamak, allowing the artificial sun to sustain high-ion temperatures exceeding 100 million degrees Celsius for longer. KSTAR—called an artificial sun because it does nuclear fusion, the same reaction that powers our star—was completed in 2007 and achieved its first plasma in…