Abstract
The optical thickness of plasma is often insufficient to absorb completely electromagnetic waves when heated at the second harmonic of the electron-cyclotron frequency. The analysis of experiments at the T-10 tokamak allowed us to find the criterion of complete absorption and to provide a transport model for complete and incomplete absorption of waves. The conditions for the equivalence of discharges in different tokamaks, as well as in a pair of tokamak–stellarator W7-X are formulated. For equivalent discharges, calculations using the model for the T-15MD tokamak meet the measurements of electron and ion temperatures in the W7-X in a wide range of plasma densities. The confirmed model is used to analyze future T-15MD pulses.
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ACKNOWLEDGMENTS
We thank N.A. Kirneva for her active help and useful discussions in preparing the work for publication. The program of experiments at the T-10 is supported by Rosatom State Corporation.
Funding
Data processing and modeling are supported by the Russian Science Foundation, project no. 19-12-00312. The work of Yu.N. Dnestrovskij and D.Yu. Sychugov was supported by the Russian Foundation for Basic Research, grant no. 20-07-00391.
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Dnestrovskij, Y.N., Danilov, A.V., Dnestrovskij, A.Y. et al. Transport Models for Plasma Heating with Second Harmonic of Electron-Cyclotron Frequency. Phys. Atom. Nuclei 85 (Suppl 1), S34–S49 (2022). https://doi.org/10.1134/S1063778822130051
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DOI: https://doi.org/10.1134/S1063778822130051