https://doi.org/10.1051/epjconf/202431302003
Progress of the electron cyclotron resonance heating system and the related experiments on J-TEXT
International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Technology, Huazhong University of Science and Technology, 430074 Wuhan, China
* Corresponding author: xiadh@hust.edu.cn
Published online: 15 November 2024
To augment the capabilities of the J-TEXT tokamak, efforts were undertaken in 2017 to commence the construction of an electron cyclotron resonance heating (ECRH) system. A significant milestone was achieved in 2019 when the successful operation took place using this 105 GHz ECRH system. The system consists of components including the gyrotron from GYCOM, a transmission line spanning approximately 30 meters, and a quasi-optical launcher equipped with an elliptical mirror and movable flat mirror. Another identical system was deployed in 2023 for experimental purposes. Notably, modifications were made to the launcher to support the injection of two beams. Various experiments have been conducted utilizing this system including assisted plasma start-up, control methods for tearing mode, and observations involving toroidal injection of electron cyclotron wave (ECW), etc.
© The Authors, published by EDP Sciences, 2024
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