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Updated: Jun 7, 2026
06:46
Applying X-ray Imaging Crystal Spectroscopy for Use as a High Temperature Plasma Diagnostic
Published on: August 25, 2016
The ITER core imaging x-ray spectrometer: x-ray calorimeter performance.
P Beiersdorfer1, G V Brown, J Clementson
1Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
The Review of Scientific Instruments
|November 2, 2010
Summary
An x-ray microcalorimeter on ITER will survey heavy ion impurities and measure ion temperatures. This instrument enhances plasma diagnostics for fusion energy research.
Area of Science:
- Plasma Physics
- Nuclear Fusion Engineering
- Astrophysical Instrumentation
Background:
- ITER requires advanced diagnostics for core plasma characterization.
- Imaging crystal spectrometers provide valuable data but have limitations in impurity analysis.
- X-ray microcalorimeters offer high spectral resolution for plasma diagnostics.
Purpose of the Study:
- To present the anticipated performance of an x-ray microcalorimeter instrument for ITER.
- To detail its role within the core imaging x-ray spectrometer system.
- To highlight its capability in surveying heavy ion plasma impurities and measuring ion temperatures.
Main Methods:
- Utilizing an x-ray microcalorimeter as part of the core imaging x-ray spectrometer.
- Augmenting existing imaging crystal spectrometers.
- Analyzing emission lines from various elemental ions at different radial positions.
Main Results:
- The instrument is expected to provide a survey of heavy ion impurity concentrations in the ITER core.
- Potential for determining ion temperature values from spectral line analysis.
- Enhanced radial profiling of plasma parameters.
Conclusions:
- The x-ray microcalorimeter will significantly improve ITER's capability for core plasma impurity assessment.
- It will provide crucial data for understanding and controlling fusion plasma.
- This diagnostic advancement is key for ITER's operational success and fusion energy development.
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