Scientists announced that the Korea Superconducting Tokamak Advanced Research (KSTAR) nuclear fusion reactor has set a new record by superheating a plasma loop to 180 million degrees Fahrenheit (100 million degrees Celsius) and sustaining it for 48 seconds.
This tokamak reactor works by superheating plasma and trapping it inside a doughnut-shaped reactor chamber with powerful magnetic fields. To set this new record, the team had to extend the plasma’s burning time by modifying aspects of their reactor’s design, including replacing carbon with tungsten to improve the efficiency of the tokamak’s divertors.
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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,” said Si-Woo Yoon, the director of the KSTAR Research Center.
