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Development of a High Resolution X-Ray Imaging Crystal Spectrometer for Measurement of Ion-Temperature and Rotation-Velocity Profiles in Fusion Energy Research Plasmas [report]

K Hill, Ch Broennimann, E Eikenberry, A Ince-Cushman, S Lee, J Rice, S Scott, R Barnsley
2008 unpublished

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A new imaging high resolution x-ray crystal spectrometer (XCS) has been developed to measure continuous profiles of ion temperature and rotation velocity in fusion plasmas. Following proof-of-principle tests on the Alcator C-Mod tokamak and the NSTX spherical tokamak, and successful testing of a new silicon, pixilated detector with 1 MHz count rate capability per pixel, an imaging XCS is being designed to measure full profiles of T i and v φ on C-Mod. The imaging XCS design has also been
more » ... for ITER. Ion-temperature uncertainty and minimum measurable rotation velocity are calculated for the C-Mod spectrometer. The affects of x-ray and nuclear-radiation background on the measurement uncertainties are calculated to predict performance on ITER.
doi:10.2172/960413 fatcat:pbvig4n5i5f5hkiauxgnhlj6zm
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K Hill, Ch Broennimann, E Eikenberry, A Ince-Cushman, S Lee, J Rice, S Scott, R Barnsley. "Development of a High Resolution X-Ray Imaging Crystal Spectrometer for Measurement of Ion-Temperature and Rotation-Velocity Profiles in Fusion Energy Research Plasmas." (2008)