RADCAM—A radiation camera system combining foil bolometers, AXUV diodes, and filtered soft x-ray diodes

What is it about?

An accurate measurement of radiated power output in a nuclear fusion reactor, such as a tokamak, is extremely challenging. The radiated power emitted is across the visible to hard x-ray spectral range and can vary by several orders of magnitude in milliseconds. Furthermore, the plasma being studied is confined within a high-vacuum chamber and surrounded by strong electromagnetic fields. The system presented in this work has not only been developed to provide radiated power measurements in such an environment, but is also capable of providing two-dimensional profiles of plasma radiation emission on sub-millisecond timescales.

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Photo by Michael Dziedzic on Unsplash

Photo by Michael Dziedzic on Unsplash

Why is it important?

The system presented in this work will allow scientists detailed insights into radiated power emission from tokamak plasmas, paving the way for studies exploring power exhaust. The techniques developed in this paper are also applicable to a range of other devices that require radiation power measurements.