Corrected analysis finds ITER Thomson scattering achieves 10% electron temperature accuracy only up to 20 keV at low background radiation and 1 keV at high background, needing 2-4x higher laser energy or 6e19 m^-3 minimum density for full range.
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On the accuracy of measurements of electron temperature by Thomson scattering diagnostic in the plasma core of the ITER tokamak
Corrected analysis finds ITER Thomson scattering achieves 10% electron temperature accuracy only up to 20 keV at low background radiation and 1 keV at high background, needing 2-4x higher laser energy or 6e19 m^-3 minimum density for full range.