A nuclear fusion experiment produced more energy than it consumed.
For decades, scientists have therefore been chasing nuclear fusion as a holy grail of sustainable energy generation, but have fallen short of achieving it. However, a team from the Lawrence Livermore National Laboratory in California may have finally made a major leap to creating energy-giving 'stars' inside reactors here on Earth.
The experiment involved bombarding a pencil-eraser-sized pellet of fuel with 192 lasers, causing the pellet to then release more energy than the lasers blasted it with."LLNL's experiment surpassed the fusion threshold by delivering 2.05 megajoules of energy to the target, resulting in 3.15 MJ of fusion energy output, demonstrating for the first time a most fundamental science basis for inertial fusion energy ," LLNL's statement reads.
Even though this is only a preliminary step towards harnessing fusion power for clean energy, LLNL leaders are hailing the accomplishment as a transformative breakthrough."Ignition is a first step, a truly monumental one that sets the stage for a transformational decade in high-energy density science and fusion research and I cannot wait to see where it takes us," said LLNL Director Dr. Kim Budil during Tuesday's press conference.
Such conditions lead up to the ignition of the fusion reaction, which, however, in the current experiment was sustained for only a very short period of time. During the experiment, the energy generated by the fusing atoms surpassed the amount of energy required by the lasers igniting the reaction, a milestone known as net energy gain.
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