In recent years, the International Thermonuclear Experimental Reactor (ITER) Program has attracted much attention from all walks of life around the world.
This scientific experiment program, known as the “artificial sun”, shoulders the “future destiny” of mankind. It is currently one of the largest and most far-reaching international scientific research cooperation projects in the world and is highly expected.
On December 27, the foreign media “Phys.org” published a critical article saying that South Korea’s “artificial sun” South Korea’s superconducting Tokamak Advanced Study (KSTAR) was a remarkable success in the experiment on December 26: it maintained plasma for 20 seconds at temperatures of up to 100 million degrees Celsius.
The clock has been the longest recorded of its kind in the world. In April this year, China’s oriental super ring lasted nearly 10 seconds at 100 million degrees.
According to foreign media “Phys.org”, KSTAR is located in the specialized research center of the Korea Fusion Energy Research Institute (KFE). South Korean researchers began to operate KSTAR in August 2019.
By December 10 this year, South Korean researchers had conducted a total of 110 plasmas. Body experiments, including experiments on high-performance plasma manipulation and mitigation of plasma damage. Previously, KSTAR’s maximum record was 8 seconds.
In order to produce such a high temperature on the earth, the foreign media “Engadget” analyzed that in order to produce such a high temperature on the earth, hydrogen isotopes must be placed inside the fusion device to produce a plasma state, in which the ions and electrons are separated. The ion must be heated and kept at very high temperatures.
In order to produce such a high temperature on Earth, hydrogen isotopes must be placed inside the fusion device to produce a plasma state, in which ions and electrons are separated. The ion must be heated and kept at very high temperatures. This process is similar to the process of the sun producing heat to a certain extent, so it is called the “artificial sun”.
Engadget also pointed out that there is still a lot of work to be done to further improve the maintenance time, including key improvements in the performance of the internal transmission barrier (ITB) mode, improving stability, etc.
KSTAR’s ultimate goal is to run continuously for five minutes at extreme temperatures by 2025.
Si-Woo Yoon, director of the KSTAR Research Center, said in an interview with Phys.org: “The technology needed to achieve the long-term operation of plasma is the key to achieving fusion energy, and KSTAR’s success in maintaining high-temperature plasma for 20 seconds will be to ensure that the long An important turning point in the competition for the safety of efficient plasma operation technology, which is a key component of future commercial fusion reactors.
Dr. Young-Seok Park of Columbia University in the United States said: “We are honored to participate in KSTAR’s research project and achieve such important achievements with colleagues at Seoul University.
By achieving high-efficiency core plasma heating and obtaining 100 million degrees of ion temperature over such a long period of time, the unique capabilities of KSTAR devices will lay a convincing foundation for the study of steady-state fusion plasma.”
