The breakthrough in nuclear fusion research last year is more than a subtle assurance that limitless, clean, and safe energy is closer than we think.
in which it used laser technology to produce the highest recorded fusion power output relative to power in, a value calledof 0.7. But the event was short-lived, producing just 1.3 megajoules over less than 4 billionths of a second.released from nuclear fusion, marking a major milestone after 24 years. JET's tokamak produced 59 megajoules of energy over a five-second pulse, enough to boil about 60 kettles' worth of water.
ITER will use a fuel made of equal parts tritium and deuterium — the same mixture that was trialed at JET. While tritium is a rare and radioactive isotope of hydrogen, it produces more neutrons when it fuses with the isotope deuterium than the reactions between deuterium particles alone. This increases the energy output.
Last year, EUROfusion decided to end JET’s operations at the end of 2023, 40 years after they began. ITER is expected to begin experiments by 2025.Can nuclear fusion replace all forms of renewable energy? "It is not meant to replace other forms of renewable energy. Fusion provides one of the few options for supplying large amounts of continuous power to the grid and it is essential that we develop it, along with other sources, particularly renewables," said Milnes.
France Dernières Nouvelles, France Actualités
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