According to China National Nuclear Corporation, on the afternoon of August 25, the new generation of artificial sun " China Gyre 3 " made significant scientific research progress, and for the first time achieved a high-constraint mode operation under a plasma current of 1 million amperes, which once again refreshed the operation record of China's magnetic confinement fusion device. , has broken through key technical problems such as plasma high-current high-constraint mode operation control, high-power heating system injection coupling, and advanced divertor configuration control. Research takes a major step toward high-performance fusion plasma operation.
A new generation of artificial sun "China Gyre-3".
In order to realize fusion energy, it is necessary to improve the comprehensive parameters of plasma to the conditions of fusion ignition. The high confinement mode (H mode) in magnetic confinement nuclear fusion is a typical advanced operation mode, which is selected as the standard operation mode of the International Thermonuclear Experimental Reactor (ITER) under construction, which can effectively improve the overall confinement performance of the plasma , to improve the economy of the future fusion reactor, compared with the normal operation mode, its plasma comprehensive parameters can be increased several times.
"China Circulation No. 3" realized the high-constraint mode operation under the plasma current of 1 million amperes for the first time, and once again set a record for the operation of magnetic confinement fusion devices in my country.
Controllable nuclear fusion, as a cutting-edge disruptive technology facing major national needs, has outstanding advantages such as rich resources, environmental friendliness, and inherent safety. It is currently recognized as one of the important ways to finally solve human energy problems. , The construction of national defense industry has important strategic significance. Controllable nuclear fusion is an important part of the three-step strategic system of "thermal reactor-fast reactor-fusion reactor" in my country's nuclear energy development. Key technological variables for national energy security.
On the basis of realizing the high-constraint mode operation of the million-ampere plasma current, the team of the new-generation artificial sun "China Circulation No. 3" will further develop core technologies such as high-power heating and current drive, advanced plasma operation control, etc., to realize core High-level plasma operation, research on cutting-edge fusion physics, and lay a solid foundation for my country to carry out fusion combustion experiments and independently build fusion reactors.