X-ray Techniques  /  Plasma Spectroscopy

Plasma Spectroscopy

High-resolution X-ray Spectroscopy for plasma diagnostics in tokamaks and stellarators enables researchers to measure the ion and electron temperatures and the plasma flow velocity profiles with much higher temporal and spatial resolutions than were previously feasible.

The challenge of performing plasma diagnostics in tokamaks and stellarators can be summarized as “detecting low and [high] X-ray energy signals under harsh conditions: high vaccum, limited space, high temperature, and magnetic fields”. The X-ray detectors that are needed for these types of experiments require many advanced features: a high dynamic range, high efficiency at low and high energies, and a flexible approach. 

Photon-counting technology answers these challenges through its intrinsic features. Noise-free performance makes it possible to detect weak signals at a high speed, while the detectors’ hybrid design enables optimization of size, shape, and performance. With a choice between Si and CdTe sensors, you can optimize an X-ray detector for low or high energies, while its internal design allows for the detecting module and the readout electronics to be separated, thus offering good protection from magnetic fields. 

So far, these X-ray detectors have been delivering reliable data at a frame rate of 500 Hz, but the newest developments challenge that: the EIGER2 detector series offers speeds up to 2,000 Hz!

  • Large Si- and CdTe-based detectors ensure optimal efficiency at low, mid-, and high X-ray energies.
  • We offer vacuum compatibility and Specific Solutions with custom-made geometries and calibrations.
  • These detectors feature high frame rates, from 500 Hz onwards.

Plasma Spectroscopy

  • We offer calibrations for low X-ray energies.
  • The detecting module and the readout electronics to be separated for operation under magnetic fields.

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Our Application Expert

Nicolas Pilet
Head of Sales, Application Scientist

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