EPJ Web of Conferences
Volume 32, 2012EC-17 – 17th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating
|Number of page(s)||6|
|Published online||06 September 2012|
Recent Progress of 2MW 140GHz ECRH System on HL-2A
Southwestern Institute of Physics, P.O. Box 432, Chengdu, China
In order to provide more capability of physics study for high-performance plasma, such as current profile control, neoclassical tearing modes suppression, transport study and so on, a new 2MW/140GHz/3s second-harmonic ECRH system with X-mode injection is on schedule on HL-2A. The total power of this system is 2MW and the pulse duration is 3 sec, which is generated by two gyrotrons manufactured by GYCOM. Two evacuated Φ63.5mm transmission lines were used to propagate these two 1MW/3s wave beams. A fast steerable launcher has been designed and installed on the HL-2A tokamak to inject four beams with narrow beam width and enable continuous beam scanning in toroidal and poloidal directions independently.
© Owned by the authors, published by EDP Sciences 2012
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