ref [11] · 2609.01366 · notice #10920 · dispute
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Some light elements are, however, not well understood in current nuclear fusion astrophysical chains, they are explained as being produced by cosmic radiation. We will not address here this 'origin' question subject to ongoing research using the cosmic flux measurements by the Alpha Magnetic Spectrometer Collaboration with the instrument sited on the International Space Station, see for example [11] for Lithium isotope abundance update. Tritium and helium-3 In the technological race to realize first-generation fusion reactors, the most important hydrogen isotope is the yet heavier tritium T, with nucleus t=pnn . While d is naturally stable, t has a half-life of 12.32 yr (4500 days) and is therefore practically absent as a natural isotope in Earth's crust.
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Some light elements are, however, not well understood in current nuclear fusion astrophysical chains, they are explained as being produced by cosmic radiation. We will not address here this 'origin' question subject to ongoing research using the cosmic flux measurements by the Alpha Magnetic Spectrometer Collaboration with the instrument sited on the International Space Station, see for example [11] for Lithium isotope abundance update. Tritium and helium-3 In the technological race to realize first-generation fusion reactors, the most important hydrogen isotope is the yet heavier tritium T, with nucleus t=pnn . While d is naturally stable, t has a half-life of 12.32 yr (4500 days) and is therefore practically absent as a natural isotope in Earth's crust