UK's Tokamak Energy reveals high-speed color details of plasma behavior

UK's Tokamak Energy Reveals High-Speed Color Details of Plasma Behavior

Fusion firm Tokamak Energy has released the first high-speed color images of plasma from inside a fusion energy machine.

The footage provides a clear visualization of how the plasma is both fueled and controlled, with lithium turning greenish-yellow as it traces magnetic lines.

Current experiments on our ST40 spherical tokamak are offering new visual insights into plasma behaviour, thanks to a high-speed colour camera capturing footage at 16,000 frames per second.

The new camera allows researchers to visually track materials interacting within the plasma, which reaches temperatures of tens of millions of degrees.

This development is a key step in the quest to harness fusion as a clean energy source.

Author's summary: Tokamak Energy releases high-speed footage of plasma behavior.

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Interesting Engineering Interesting Engineering — 2025-10-20

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