Simulation of transverse field sweeping system and thermal analysis of an undepreesed collector for a gyrotron

Yaru WangKey Laboratory of High Power Microwave Sources and Technology, Institute of Electronics, Chinese Academy of Sciences, Beijing, China;School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing, ChinaCorrespondence[email protected]

Zhihui GengKey Laboratory of High Power Microwave Sources and Technology, Institute of Electronics, Chinese Academy of Sciences, Beijing, ChinaCorrespondence[email protected]

Hongsheng WangKey Laboratory of High Power Microwave Sources and Technology, Institute of Electronics, Chinese Academy of Sciences, Beijing, China;School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing, China

Xiaowan HouKey Laboratory of High Power Microwave Sources and Technology, Institute of Electronics, Chinese Academy of Sciences, Beijing, China

Shouxi XuKey Laboratory of High Power Microwave Sources and Technology, Institute of Electronics, Chinese Academy of Sciences, Beijing, China

Gaofeng LiuKey Laboratory of High Power Microwave Sources and Technology, Institute of Electronics, Chinese Academy of Sciences, Beijing, China;School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing, China

Dongping GaoKey Laboratory of High Power Microwave Sources and Technology, Institute of Electronics, Chinese Academy of Sciences, Beijing, China

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Abstract

In this paper, the simulation of transverse sweeping system (TFSS) and thermal analysis of undepressed collector for a 94 GHz, 30 kW CW gyrotron are presented. A smooth power-density distribution profile on the collector is obtained through repeated comparison of the TFSS simulation results, which indicates the range of spent beam spread and the peak power density are about 370 mm and 130 W/cm², respectively. The sensitivities of the TFSS’s parameters to the power distribution profile are also studied and analyzed. To avoid the melting of the collector, a cooling channel groove is designed and the thermal analysis with finite element software ANSYS is performed under the non-uniform heat flux. The maximum outer and inner surface temperatures are 94.3 and 102.4 °C with water temperature at 20 °C, respectively.

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Acknowledgment

The authors are grateful to all team members in our laboratory due to their continuous support and encouragement.

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Simulation of transverse field sweeping system and thermal analysis of an undepreesed collector for a gyrotron

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Simulation of transverse field sweeping system and thermal analysis of an undepreesed collector for a gyrotron

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