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Updated: Mar 11, 2026

Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry
Published on: August 1, 2017
Fitting of the Thomson scattering density and temperature profiles on the COMPASS tokamak
E Stefanikova1, M Peterka1, P Bohm1
1Institute of Plasma Physics of the CAS, Za Slovankou 1782/3, 180 00 Prague, Czech Republic.
Abstract:
A new technique for fitting the full radial profiles of electron density and temperature obtained by the Thomson scattering diagnostic in H-mode discharges on the COMPASS tokamak is described. The technique combines the conventionally used modified hyperbolic tangent function for the edge transport barrier (pedestal) fitting and a modification of a Gaussian function for fitting the core plasma. Low number of parameters of this combined function and their straightforward interpretability and controllability provide a robust method for obtaining physically reasonable profile fits. Deconvolution with the diagnostic instrument function is applied on the profile fit, taking into account the dependence on the actual magnetic configuration.
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