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Nuclear fusion reactor in South Korea runs at 100 million degrees C for a record-breaking 48 seconds
(www.livescience.com)
this post was submitted on 06 Apr 2024
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I thought we used magnetrons and such, and the excessive heat was due to current inefficiency and control of the fusion process in containing the heat and it building up higher and higher.
The heat is needed so atoms collide enough to fuse without the high pressure inside a star. The trick is keeping the reaction going.