Korean artificial sun has set a new world record for plasma maintenance Great news comes from South Korean scientists working on the KSTAR tokamak. It managed to set a new plasma maintenance record and made a big step towards the commercialization of these devices.

The Chinese recently boasted of launching their new nuclear fusion reactor, the HL-2M (EAST project), and producing plasma, and now their achievements have been eclipsed by the Koreans. KSTAR is much more advanced and efficient. Scientists conducted an experiment in which they managed to create a plasma with a temperature of over 100 million degrees Celsius and hold it for 20 seconds.

Thus, they broke the world record from 4 and 5 years ago. The reaction then took 55 seconds and 70 seconds, but the temperature was 50 million degrees Celsius. Meanwhile, the Chinese managed to keep the plasma for 102 seconds, also at this temperature. Now the Koreans are trying to increase the plasma holding time at twice the temperature.

The aim of the work on fusion reactors is to create plasma with a temperature of 100 million degrees, which is as much as 7 times greater than that prevailing inside the Sun, and maintain it for 120 seconds. Then it will be possible to talk about a revolutionary breakthrough, thanks to which the energy obtained from this technology will start to be profitable. Scientists from KSTAR want to do this by 2025.

In the future, the efficiency of artificial suns will be thousands of times greater than even the largest nuclear power plants operating today, while the electricity they produce will be much cheaper, and the entire process of obtaining it will be safer and, most importantly, fully environmentally friendly.

Several countries around the world are currently working on artificial suns. One of the largest projects is currently being implemented in France. ITER is being built there, a European fusion reactor, which is to be ready in 2025. Then the tests will begin and will last for 10 years. Experts believe that ITER will be able to achieve a positive energy balance in the first half of the 1930s. Interestingly, scientists from the Polish Academy of Sciences are taking part in the project.