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Clean energy could be 'closer than ever' after a nuclear fusion machine smashed a record (qz.com)

submitted 9 months ago by L4s@lemmy.world to c/technology@lemmy.world

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Clean energy could be 'closer than ever' after a nuclear fusion machine smashed a record::JET's final nuclear fusion experiment produced a record-breaking 69 megajoules of heat. Nice.

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[–] Cocodapuf@lemmy.world 2 points 9 months ago* (last edited 9 months ago)

Those quick half-lives decay right away, losing a neutron, right? So that Berillium-11 just decays back into Berillium-10.

The problem is that the blanket is constantly absorbing neutrons from the fusion reactions, that's it's job. So despite using simple berillium 5 to build your blanket, you end up with these heavy isotopes over time, and because the heavier ones quickly decay into lighter ones, you basically end up with a whole lot of berillium-10.