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Upgrades to Korea's 'artificial Sun' fusion reactor have produced another record-breaking result, with new components able to better withstand blistering temperatures and sustain a swirling ball of 100 million-degree plasma for almost 50 seconds.
It's a leap of close to 20 seconds from the Korea Superconducting Tokamak Advanced Research reactor , which has beenAt 100 million degrees Celsius, heavy hydrogen isotopes in the plasma are forced to fuse together, releasing energydoesn't absorb the plasma fuel, helping to extend KSTAR's record fusion time to 48 seconds in its latest 3-month run, up from half a minute in 2021.
"Despite being the first experiment run in the environment of the new tungsten divertors, thorough hardware testing and campaign preparation enabled us to achieve results surpassing those of previous KSTAR records in a short period," Si-Woo Yoon, director of the KSTAR Research Center,or that the new set-up would fail to generate plasma. Not only had the material of the divertor changed, but also its shape.
That's six times longer than KSTAR's current record, and still minutes shorter than China's Experimental Advanced Superconducting Tokamak reactor, which as of April last year, could generate and sustain plasma forto power up fusion reactors and generate plasma reactions for even a few seconds – so their ability to generate plentiful clean energy is still
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