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‘Artificial sun’ sets record for time at 100 million degrees Celsius in latest advance for nuclear fusion
The Korean Institute of Fusion Energy announced a new world record for the length of time it managed to sustain temperatures seven times hotter than the sun’s core
The most common way of achieving fusion energy involves a donut shaped reactor called a tokamak in which hydrogen variants are heated to extraordinarily high temperatures to create a plasma. The KFE scientists said they managed to extend the time by tweaking the process, including using tungsten instead of carbon in the “diverters,” which extract heat and impurities produced by the fusion reaction. What the scientists are doing in South Korea will feed into the development of the International Thermonuclear Experimental Reactor in southern France, known as ITER, the world’s biggest tokamak which aims to prove the feasibility of fusion.
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