Korean “Artificial Sun” Reactor Sets Record at 100 Million Degrees | Technology

Korean Artificial Sun Fusion Reactor Record 100 Million Degrees.jpg

That’s seven times as hot as the Sun’s core.

Plasma Trappers

South Korean scientists have set a new world record using the Korea Superconducting Tokamak Advanced Research (KSTAR) device, an “artificial Sun” nuclear fusion reactor, in what they say is a major step forward for the tech.

The team was able to generate plasma temperatures of 100 million degrees Celsius — seven times as hot as the Sun’s core — for 48 seconds, indicating we’re finding new ways to confine the stuff and potentially turn it into a viable source of power for longer periods. The facility’s previous record, set in 2021, was just 30 seconds.

In theory, fusion energy is simple. By fusing atoms together inside a reactor, scientists are hoping to generate a net positive amount of safe and pollution-free energy — the same way that stars such as our solar system’s Sun work. However, despite the latest breakthrough and many decades of research, we’re still nowhere near a place where fusion reactors could replace conventional nuclear power reactors at scale.

But teams at the Korean Institute of Fusion Energy (KFE) are nonetheless optimistic.

The latest record “will be of great help to secure the predicted performance in ITER operation in time and to advance the commercialization of fusion energy,” KFE director Si-Woo Yoon told CNN, referring to the world’s largest nuclear reactor that’s currently being built in southern France.

Tokamak Toke

By confining blistering hot plasma inside a donut-shaped fusion reactor called a “tokamak,” researchers are hoping to gain a net positive amount of energy out of the reaction by heating water, and turning the resulting…

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