| Issue |
E3S Web Conf.
Volume 185, 2020
2020 International Conference on Energy, Environment and Bioengineering (ICEEB 2020)
|
|
|---|---|---|
| Article Number | 02016 | |
| Number of page(s) | 4 | |
| Section | Energy Saving and Environmental Protection Technology | |
| DOI | https://doi.org/10.1051/e3sconf/202018502016 | |
| Published online | 01 September 2020 | |
Experimental Study on Collimation Characteristics of an ECRH System with a 28GHz/50kW Gyrotron
1 University of Electronic Science and Technology of China, Chengdu, Sichuan, 610054, China
2 ENN Science and Technology Development Co., Ltd, Langfang, Hebei, 065001, China
* Corresponding author: zhouqinge@enn.cn
In this paper, the collimation characteristics of an electron cyclotron resonance heating (ECRH) system with a 28GHz/50kW gyrotron in EXL-50 are studied experimentally. Through using laser trackers and designing matching tooling, test errors of horizontal distances and vertical distances between the transmission line and the flange center are all within 1mm, which are less than 0.4% and 0.07% respectively. In addition, online beam spot test with a 150 ms short pulse from a 28 GHz gyrotron also proves good collimation characteristics of the ECRH system. Finally, spherical plasma is formed through injecting the microwave to the vacuum chamber.
© The Authors, published by EDP Sciences, 2020
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