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In his time at DIFFER (the Dutch Institute for Fundamental Energy Research) and the Swiss Plasma Center, fusion researcher Wouter Vijvers developed a novel imaging diagnostic known as MANTIS (Multispectral Advanced Narrowband Tokamak Imaging System).

Today, as CEO of the fusion spin-off Chromodynamics, he is hoping to use his real-time imaging technique in applications such as medical diagnosis and industrial quality and process control.

Imagine if a surgeon removing a malignant tumour from a patient could precisely see the contours of the tumour while operating. "Healthy tissues and malignant tissues have different chemical profiles, and this difference is what multispectral imaging will be able to capture and show," he explains. "Combine that with real-time capabilities, and a surgeon could see the image of the malignant tissue while operating to ensure complete removal."

In the meantime, Vijvers is still using his technology to study the plasma edge. In a Cooperation Agreement signed in February with the ITER Organization, Chromodynamics is joining Dutch research institutes TNO and DIFFER as well as Active Space Technologies (Europe) to develop a diagnostic tool capable of measuring the impurity content of the plasma.

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Lithium, the light silvery metal used in everything from pharmaceutical applications to the batteries that power your smartphone or electric car, could also help harness fusion energy on Earth. Lithium can maintain the heat and protect the tokamak vessel walls, and it will be used to produce tritium, the hydrogen isotope that will combine with deuterium to fuel fusion.

At the Princeton Plasma Physics Laboratory (PPPL) in the US, researchers have completed a three-year upgrade of the Lithium Tokamak Experiment, now called the Lithium Tokamak Experiment-Beta. This unique device will be able to test the ability of lithium to maintain the heat and protect the walls of the tokamak.

Photo: Interior view of the Lithium Tokamak Experiment prior to the upgrade.

See plans for the machine on the .