Korea's artificial sun, KSTAR, has set a new temperature record of 7 times that of the Sun's core thanks to new tungsten diverters.
For the first time, the Korea Institute of Fusion Energy’s Korea Superconducting Tokamak Advanced Research fusion reactor has reached temperatures seven times that of the Sun’s core., the researchers behind the reactor report, managed to maintain temperatures of 212 degrees Fahrenheit for 48 seconds.
According to Korea’s National Research Council of Science & Technology , creating technology that can maintain high-temperature and high-density plasmas where the fusion reactions occur most effectively for extended periods is crucial., the secret behind these major achievements is tungsten divertors. These are vital components located at the bottom of the vacuum vessel in a magnetic fusion device.
Tungsten has the highest melting point of all metals, and the team’s success in maintaining H-mode for longer periods of time is mainly attributed to this successful upgrade. The NST reports that this change has been a significant improvement.“In comparison with the previous divertors based on carbon, the new tungsten divertors showed only 25% increase in surface temperature under similar heat loads.
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