The artificial sun moves at 100 million degrees C for 20 seconds

Korea Superconducting Tokamak Advanced Research (KSTAR) National Research Council of Science and Technology

An artificial sun made in Korea has set a new record for the longest expedition, maintaining a temperature of 100 million degrees Celsius for 20 seconds.

Korea Superconducting Tokamak Advanced Research (KSTAR), technically known as the “Super Conducting Nuclear Fusion Research Device”, is a device that regenerates our Sun-like star-like fusion, allowing magnetic fusion. The idea is that fusion can be used as a power source and can be safely incorporated using magnetic fields.

The new period of operation of 20 seconds at full temperature is a step towards the previous achievement of running KSTR for 8 seconds in 2019, after reaching this first temperature in 2018.

Extremely high temperatures of 100 million degrees are required for hydrogen atoms to acquire sufficient energy to overcome the repulsive electrical energies in protons. This allows the atoms to fuse, which can generate electricity in a process called thermal fusion energy. Such a source could be a sustainable alternative energy source that could reduce the world’s dependence on fossil fuels.

C-Ou Eun, director of the KSTR Research Center at KFE, explained the achievement in a statement: “The technologies required for the long-term operation of 100 million plasmas are key to the realization of fusion energy and KSTR’s success in maintaining high Temperature plasma for 20 seconds will be an important turning point in the competition to protect technologies for high-performance plasma operations. ”

The latest advances were enabled by improving the effectiveness of the Internal Transport Barrier (ITB) mode; A recently developed mode that allows plasma to be maintained for a longer period of time. “The success of the KSTA test in long, high-temperature operation overcoming some of the shortcomings of the ITB mode has taken us one step further in the development of technology for achieving nuclear fusion energy,” said Yung-su Na, a yoga engineer at SNU .

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