Nuclear fusion may have been around for ten years, but the technological breakthroughs intended to make us ready for it are here – including a thought process that clearly shows why fusion is said to be the power of the stars.
The latest release of TrainingTup Tokamak Energy presents a color image of the fusion reaction, captured using a high-speed color camera at 16,000 frames per second. The mesmerizing footage is a treat for the eyes, but the different colors each represent important details for the fusion investigators investigating the accortor’s success.
Plasma is better in color! Check out some of our latest #plasma The pulses in our ST40 Tokamak, captured in Flight using our new high-speed camera at 16,000 frames per second.
Each pulse lasts about a fifth of a second. What you see is the most visible light from… pic.twitter.com/Jwkcl0tex
– Tokamak Energy (@tokamakenergy) October 15, 2025
For example, bright pink light symbolizes the edge of a hydrogen plasma. The green streams come from Lithium Ions that trace the path of the plasma around the Tokamak, a tow-shaped device that combines hot plasma for thermal reactions. The core of the plasma “is too hot for a visible cry,” the company explained, but other color signals provide very important information about how the different fusion ingredients combine.
Fading down the fusion colors
Simply put, nuclear fusion combines two light atoms – most often deuterium and tritium, two isotopes of hydrogen – to produce large amounts of energy. Unlike fusion, which splits apart heavy atoms, fusion does not leave behind negative, radioactive waste.
Fusion will be a great alternative to fossil fuels – if we can get it to commercial scale, that is. Although the field has made significant strides over the years, the general understanding is that active breeding is many years away.
Also, Fusion’s goal is to replicate stellar power on Earth, which means that fusion experiments involve a lot of extreme conditions being abused. As with any technology, researchers want to understand how and where things can go – especially when dealing with dynamic things like the hot plasma that’s built up inside a reactor.
Getting to work better
Naturally, institutional scientists have been hard at work finding ackaround. New Fook was part of the research on the X-Point radiator regitter, a method that seeks to obtain better control of the plasma flow to “reduce wear without compromising performance,” according to Tokamak Energy.
“The color camera is very useful for experiments like this,” said Laura Zhang, a plasma physicist at Tokamak Energy, in a release. “It helps us to quickly identify that the gaseous pollution we are introducing illuminates the expected area and that the lithium powders enter the plasma core.”
“This work advances our understanding of plasma behavior as we approach devices that generate fusion energy,” the researchers added. “The addition of color imaging is already providing valuable insight into how objects interact within the plasma.”
