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QIAN Cheng, CHEN Zhi, WU Qi, ZHANG Wen-hui, WANG Yun, YANG Yao, MA Hong-yi, FANG Xing, SUN Liang-ting, ZHANG Xue-zhen, ZHANG Zi-min, LIU Zhan-wen, ZHAO Hong-wei. Microwave Impedance Matching of A 2.45 GHz ECR Ion Source[J]. Nuclear Physics Review, 2013, 30(1): 32-37. DOI: 10.11804/NuclPhysRev.30.01.032
Citation: QIAN Cheng, CHEN Zhi, WU Qi, ZHANG Wen-hui, WANG Yun, YANG Yao, MA Hong-yi, FANG Xing, SUN Liang-ting, ZHANG Xue-zhen, ZHANG Zi-min, LIU Zhan-wen, ZHAO Hong-wei. Microwave Impedance Matching of A 2.45 GHz ECR Ion Source[J]. Nuclear Physics Review, 2013, 30(1): 32-37. DOI: 10.11804/NuclPhysRev.30.01.032
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Microwave Impedance Matching of A 2.45 GHz ECR Ion Source

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    • Abstract
  • Plasma impedance of an ECR ion source is important for microwave transmission and impedance matching design. Plasma impedance was measured indirectly with the 2.45 GHz ECR proton source at the Institute of Modern Physics, Chinese Academy of Sciences. In the test, we got microwave window mpedance by using water absorption load instead of plasma load, and the source plasma impedance was derived from the test data with the 2.45 GHz ECR proton source and microwave window impedance. The experimental results show that ridge waveguide output impedance and the subsequent load does not exactly match, plasma impedance variation is nonlinear with microwave power. The achieved
    result is useful in the design of ridged waveguide and microwave window.
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