CCTV reported that the world’s first all-superconducting tokamak EAST device (artificial sun) in operation in China has achieved high-power and stable 403-second steady-state long-pulse high-constraint mode plasma operation, creating a steady-state tokamak device Highly constrained mod runs a new world record.
According to reports, at 9:00 pm on Wednesday (12th), EAST successfully achieved a steady-state high-constraint mode plasma operation for 403 seconds, breaking the world record of 101 seconds in 2017. “Shot: 122254.” The numbers on the screen in the EAST control hall showed that this was the success of more than 120,000 experiments.
Song Yuntao, vice president of the Hefei Institute of Physical Science of the Chinese Academy of Sciences and director of the Institute of Plasma Physics, said that the main significance of this breakthrough lies in the high-constraint mode. The temperature and density of particles in the high-constraint mode are greatly increased, which lays a solid physical foundation for improving the power generation efficiency of future fusion power plants and reducing costs.
The researchers involved in the project are very young.Xinhua News Agency
“Global Times” reported that the EAST large scientific team of the Institute of Plasma Physics, Hefei Institute of Physical Science, Chinese Academy of Sciences solved the constraints of plasma configuration, high-power radio frequency wave heating and current drive, plasma-wall interaction, and key problems in the long-term scale. A series of cutting-edge physics and technology integration issues such as instant diagnosis of distribution parameters have achieved 403 seconds of high-constrained mode plasma operation.
Researchers celebrate after a successful experiment.Xinhua News Agency
It is of great significance to accelerate the realization of fusion energy applications
The series of major breakthroughs made in the EAST physics experiment have fully verified the ability of the EAST full superconducting tokamak device to operate in a high-parameter long-pulse steady-state operation, and further verified the feasibility of the high-constraint mode steady-state operation of the fusion experimental reactor in the future. At the same time, it is also of great significance to explore the frontier physical problems of future fusion reactors, improve the economy and feasibility of nuclear fusion energy, and accelerate the application of fusion energy.
Gong Xianzu (right), chief director of the EAST physics experiment, and Song Yuntao (left), vice president of the Hefei Institute of Physical Science, Chinese Academy of Sciences, celebrated after the success of the experiment.Xinhua News Agency
In recent years, with the support of the National Development and Reform Commission, the Ministry of Science and Technology, the Chinese Academy of Sciences, and the Fund Committee, as well as the strong support of Anhui Province, Hefei City, and Hefei Comprehensive National Science Center, the performance of the EAST device has been continuously improved, and the operating range of the device has been continuously expanded. A number of major landmark achievements in international tokamak operations have been achieved.
The all-superconducting tokamak scientific device (EAST), known as the “artificial sun”, discovered and proved a new high-energy confinement mode. “Science Advances” believes that this research result is of great significance to nuclear fusion research , is a major progress in the international fusion research community.
