Korea’s KSTAR reactor sustains plasma at 100 million degrees Celsius for more than 20 seconds

Ion temperature shown in color over a period of 24 seconds, achieved by the Korea Superconducting Tokamak Advanced Research (KSTAR). Charge-exchange spectroscopy, ECE, TS and Mirnov coil signals are transformed into audible sound, so that one can diagnose the plasma through the sound. An outstanding sound around 6 s corresponds to the plasma instability. Credit: Han et al., Nature, 2022/KSTAR Read more: