NUMERICAL SIMULATION: HIGH CURRENT IN A PLASMA RELATIVISTIC GENERATOR WITH INVERSE GEOMETRY

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Abstract

This paper considers the applicability of some signal processing methods for local magnetic probes experimental data used to determine the poloidal mode number (m) of MHD perturbations in the plasma of a tokamak with a non-circular cross section. These are: the two-dimensional Fourier decomposition, the Hilbert transform method, the singular value decomposition and the phase matrix method. These methods were applied to the conditions of the D-shaped cross section of the T-15MD vacuum chamber and showed good results in determining the poloidal wave numbers of MHD perturbations for both synthetic and experimental local magnetic probes signals. The results of processing experimental data from local magnetic probes demonstrated good agreement with those obtained by the T-15MD soft X-ray diagnostic. Funding Information.

About the authors

S. E Andreev

Prokhorov General Physics Institute, Russian Academy of Sciences

Moscow, Russia

I. L Bogdankevich

Prokhorov General Physics Institute, Russian Academy of Sciences

Email: ira.bogdankevich@mail.ru
Moscow, Russia

N. G Gusein-zade

Prokhorov General Physics Institute, Russian Academy of Sciences

Moscow, Russia

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