TJ-II:Electron Cyclotron Resonant Heating
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In the TJ-II stellarator, the plasmas are created and heated by two 53.2 GHz gyrotrons, each of them delivering 300 kW. The power is transmitted to the plasma by two quasi-optical transmission lines (QTL1 and QTL2). The power is delivered to the sector B3 (for QTL1) and A6 (for QTL2). The last mirror of each line is a steerable mirror located inside the vacuum vessel, which allows for perpendicular and oblique injection. [1] [2] The gyrotron frequency is f = 53.2 GHz, tuned to the 2nd harmonic, X-mode polarisation. The total power that can be delivered to the plasma is PECRH ≤ 600 kW. The gyrotrons can be modulated.
References
- ↑ A. Fernandez et al, Design of the upgraded TJ-II quasi-optical transmission line, Conference Digest, 25th International Conference on Infrared and Millimeter Waves (2000) 91 - 92
- ↑ A. Fernandez et al, EC waves polarization control in the TJ-II stellarator, Joint 32nd International Conference on Infrared and Millimeter Waves( 2007)