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Study of a 105 GHz short-pulse dummy load for the electron cyclotron resonance heating system with the quasi-optical method |
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| Affiliation: | 1. International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China 2. Southwestern Institute of Physics, Chengdu 610041, People's Republic of China |
| Abstract: | The accurate power measurement is important for an ECRH system in tokamak. The dummy load is designed and developed for the measurement of the millimeter wave power. This work analyzes the dummy load based on the quasi-optical method and the ray tracing method. The reflectivity and thermal deposition of the dummy load have been considered to ensure the safety of the entire system. High-power tests have been carried out at a 105 GHz/500 kW ECRH system. The results of the tests indicate that the designed dummy load is stable and valid. |
| Keywords: | dummy load power measurement quasi-optical method ray tracing ECRH |
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