EAST装置电子回旋共振加热系统波纹圆波导研究  

Research of Circular Corrugated Waveguide of ECRH System on EAST Facility

作　　者：吴大俊[1,2] 王晓洁[1] 徐旵东[1] 刘甫坤[1] 单家方[1] 

机构地区：[1]中国科学院等离子体物理研究所,合肥230031 [2]中国科学技术大学,合肥230026

出　　处：《微波学报》2015年第2期72-76,81,共6页Journal of Microwaves

基　　金：国家磁约束核聚变能发展研究专项(2011GB102000;2012GB103000);中科院等离子体物理研究所科学基金(Y35ETY130D)

摘　　要：在EAST装置上正在建设140GHz/4MW/1000s电子回旋共振加热(ECRH)系统,单个回旋管输出的1MW功率通过波纹圆波导传输到天线聚焦镜上,然后经天线反射镜进入等离子体。运用表面阻抗法对波纹圆波导进行了理论分析,针对EAST装置ECRH系统需求的140GHz波纹圆波导进行了设计研究,所设计的波导传输模式为HE11模,具备1MW连续波运行能力且欧姆损耗低于0.02d B/100m,同时分析了HE11模在波导口外辐射模式及其与TEM00模耦合特性。The 140 GHz /4MW /1000 s electron cyclotron resonance heating( ECRH) system is under construction on EAST facility,the 1MW power generated by each gyrotron is transmitted to the focusing mirror of antenna through the circular corrugated waveguide,and then is launched into plasma by the steering mirror of antenna. The paper concentrates on the design of circular corrugated waveguide used for EAST ECRH system based on surface impedance method,the HE11 mode in this waveguide can carry 1MW continuous wave power with the ohmic attenuation constant less than 0. 02 d B /100 m in the case of 140 GHz operating frequency. The analyses of radiation pattern of HE11 mode and coupling performance between HE11 mode and TEM00 mode are also included in the paper.

关 键 词：电子回旋共振加热 波纹圆波导 HE11模 

分 类 号：TL631.24[核科学技术—核技术及应用]