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  1. Fusion Physicists Found a Way Around a Long-Standing Density ...

    1 day ago · For a long time, the Greenwald limit was accepted as a given and incorporated into fusion reactor engineering. The new work shows that precise control over how the plasma is created and …

  2. China’s “artificial sun” just broke a fusion limit scientists ...

    5 days ago · Researchers using China’s “artificial sun” fusion reactor have broken through a long-standing density barrier in fusion plasma. The experiment confirmed that plasma can remain stable …

  3. Tokamak experiments exceed plasma density limit, offering new ...

    Jan 1, 2026 · Under these conditions, thermonuclear power scales with the square of fuel density. However, in conventional tokamak operation, plasma density has long been restricted by an …

  4. Fusion Physicists Discovered a Method Round a Lengthy ...

    2 days ago · Experiments inside a fusion reactor in China have demonstrated a brand new strategy to circumvent one of many caps on the density of the superheated plasma swirling inside. On the …

  5. China's Fusion Reactor Breaks Density Ceiling That Has ...

    Jan 2, 2026 · That empirical limit, known as the Greenwald density, has been one of fusion’s most frustrating constraints, because the denser the plasma, the more power it produces. Scientists at …

  6. China’s “artificial sun” EAST tokamak breaks fusion plasma ...

    3 days ago · Researchers working on China’s EAST “artificial sun” tokamak have reported a way to operate fusion plasma beyond a long-standing density limit that often forces tokamaks to shut down, …

  7. China’s EAST tokamak hits stable high-density plasma beyond ...

    China’s Experimental Advanced Superconducting Tokamak has pushed fusion research into a new regime by holding a high density plasma stably beyond long accepted limits.