Physicians set a record of the duration of thermonuclear fusion at 100000000 K

Physicians set a record of the duration of thermonuclear fusion at 100000000 K

An international group of researchers published the results of the latest experiment in Nature magazine, and researchers were able to hold the thermonuclear synthesis at 100 million Kelvins for 20 seconds. This is a new record. Previously, scientists were able to either achieve this high temperature or retain plasma for such a long time.

For several decades, scientists have been trying to create sustainable thermonuclear reactions to power generation; although these studies have achieved some progress, the main goal is to build a sustainable process still far from being achieved.

The smallest variation results in instability that prevents reaction, explains scientists. The biggest problem is the release of heat, which is measured by millions of degrees. No material can contain such hot plasma, so it levitates in a magnetic field.

Two approaches are used to control plasma: the edge barrier and the internal transport barrier. In the first case, the external magnetic field prevents the release of plasma, and in the second high-pressure area in the centre of plasma, it is controlled. In its experiment, the physics used it.

Researchers note that the use of an internal transport barrier results in much denser plasma, which in turn achieves higher temperatures in the centre, while the temperature at the edges is lower, thus keeping plasma stable for more time.

Scientists plan to fine-tune their installation based on the results of the experiment in order to develop a system that will remain stable for even longer.