Simulation of Electron Cyclotron Heating of Plasma in the T-15MD Tokamak at a Frequency of 140 GHz by the GENRAY Code.

Minashin, P. V.; Kukushkin, A. B.

Electron cyclotron (EC) resonance heating in the T-15MD tokamak is calculated using the GENRAY code. The injection schemes without current generation for heating plasma using an extraordinary wave with a frequency of 140 GHz at the third harmonic of the fundamental EC frequency are considered. The cases of the wave injected through vertical, upper inclined, and equatorial port-plugs for three scenarios of the T-15MD operation—the baseline configuration and two configurations with different moderate values of plasma elongation and triangularity—are analyzed. A comparison of calculations performed using the GENRAY code with the published calculations based on the OGRAY code shows that the efficiency of EC heating in single-pass absorption and the spatial position of the absorbed power maximum are in good agreement, while the shape of the spatial profile of the absorbed power can differ significantly.

TOKAMAKS; CYCLOTRONS; PLASMA production; ELECTRONS; RESONANCE

Physics of Atomic Nuclei, 2024, Vol 87, Issue 7, p884

1063-7788

Academic Journal

10.1134/S1063778824070093