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Scientists successfully replicate historic nuclear fusion breakthrough three times

With 200 lasers and a peppercorn-sized fuel capsule, scientists inch closer to mastering fusion energy | CNN

https://edition.cnn.com/2023/12/20/climate/nuclear-fusion-energy-breakthrough-replicate-climate/index.html

Scientists in California make a significant step in what could one day be an important solution to the global climate crisis, driven primarily by burning fossil fuels.

With 200 lasers and a peppercorn-sized fuel capsule, scientists inch closer to mastering fusion energy | CNN

Scientists successfully replicate historic nuclear fusion breakthrough three times::Scientists in California make a significant step in what could one day be an important solution to the global climate crisis, driven primarily by burning fossil fuels.

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Uranium_Green

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I have no disagreement with your assertion, aside from the neglected aspect of in terms of energy in Vs energy out; the research is likely to help inform nuclear weapons design, yet if they are able to achieve more energy out than in (3mj out Vs 2mj in (though of course they required 300mj to run the lasers to produce this reaction)) then they are providing important data that may help inform different future designs of power generating fusion reactors, this is something that current other designs don't appear to have achieved afaik.

I doubt they will ever really use this style as a functional form of power generation, but if what they learn from the research allows eventually for a longer functioning fusion reaction that has an overall positive energy output, then it may be rather valuable.

justJanne

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NIF can't really ever reach Q>1. All the statements of having reached that only include the energy that reaches the capsule. The energy the lasers actually use is orders of magnitude larger.

This theoretical Q>1, where the plasma emits more radiation than it receives, have been reached by other reactors before.

But while tokamak or stellerator designs need a 2-3× improvement to produce more energy than the entire system needs, the NIF would need a 100-1000× improvement to reach that point, which is wholly unrealistic with our current understanding of physics.