These results were achieved due to the elimination of internal energy losses in the structure.
Speech
Stellarators are not the same ascommon symmetric tokamak fusion reactors, but extremely complex designs. But everyone has the same goal - to recreate the processes occurring inside the Sun. To do this, plasma streams are brought to extreme temperatures and kept under pressure, causing atoms to collide and fuse together, producing colossal amounts of energy.
The Wendelstein 7-X reactor is so complex thatSupercomputers were used to design it. It contains a series of 50 superconducting magnetic coils to hold the plasma in place. In 2018, physicists working on the project set new records for energy density and plasma confinement for a fusion reactor of this type.
Then physicists heated the plasma to 20 million °C —This is significantly higher than the temperature of the Sun; for comparison, our nearest star is heated to a temperature of 15 million °C. But for Wendelstein 7-X this is not the limit.
Physicists have studied at what stages of the reactor's operationmay lose heat and performance to correct these problems. After they analyzed the new operating scheme, they came to the conclusion that Wendelstein 7-X can create a plasma that is twice as hot as that found in the core of the Sun.
The next experiments with the reactor are planned for 2022. During them, physicists will use a water cooling system: with its help, the maximum duration of such tests will increase.
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