首页|Design of the electron cyclotron emission diagnostic on EXL-50 spherical torus
Design of the electron cyclotron emission diagnostic on EXL-50 spherical torus
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The electron cyclotron emission(ECE)diagnostic system has been developed on the ENN spherical torus(EXL-50).The ECE system is designed to detect radiation emitted by energetic electrons,rather than conventional 1D electron temperature profile measurement,in the frequency range of 4-40 GHz.The system is composed of five subsystems,each covering a different frequency band,including the C-band(4-8 GHz),X-band(8-12 GHz),Ku-band(12-18 GHz),K-band(18-26.5 GHz)and Kα-band(26.4-40 GHz).The system uses heterodyne detection to analyze the received signals.The K-band and Kα-band subsystems are located horizontally in the equatorial plane of the EXL-50,while the C-band,X-band and Ku-band subsystems are located under the vacuum vessel of the EXL-50.To direct the microwaves from the plasma to the antennas for the horizontal detection subsystems,a quasi-optical system has been developed.For the vertical detection subsystems,the antennas are directly attached to the port located beneath the torus at R=700 mm,which is also the magnetic axis of the torus.The system integration,bench testing and initial experimental results will be thoroughly discussed,providing a comprehensive understanding of the ECE system's performance and capabilities.
electron cyclotron emissionspherical torus(ST)EXL-50energetic electrons
王嵎民、谢奇峰、陶仁义、张辉、薄晓坤、孙恬恬、伦秀春、陈琳、谭伟强、郭栋、邓必河、刘敏胜、the EXL-50 Team
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Hebei Key Laboratory of Compact Fusion,Langfang 065001,People's Republic of China
ENN Science and Technology Development Co.,Ltd.,Langfang 065001,People's Republic of China
国家自然科学基金High-End Talents Program of Hebei Province,Innovative Approaches Towards Development of Carbon-Free Clean Fusion Energy
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