Fig. 3. (a) Radial profile of n_e, T_e, at B_t = 0.065 T and R = 0.4 m without vacuum PF. The ECH power is 5 kW with a pressure of 3.33 × 10⁻³ Pa. The outer gray box (R = 0.6 m) indicates a vacuum vessel. Meanwhile, the inner gray box (R = 0.13 m) indicates a center stack. (b) Radial profile of cutoff and resonance of X-wave by cold plasma dispersion relation.

Applied Science and Convergence Technology 2025;34:31~37 https://doi.org/10.5757/ASCT.2025.34.1.31

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