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| 引用本文： | �� ���������,������������ ��,���� ��,��������������ɽ,���Թ��. �����ӻ��������������������������ʵ���о�[J]. 核聚变与等离子体物理, 2006, 39(1): 21-27. DOI: 10.16568/j.0254-6086.201901004 |
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| 作者姓名： | �� ��������� ������������ �� ���� �� ��������������ɽ ���Թ�� |
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| 作者单位： | (1. ?й??????????ù???????????????? 100094?? 2. ?й?????????????? 100049?? 3. ?й??????????????????о???????? 230031?? 4. ?й??????????????????????????? 100094?? 5. ?й???????????????????????? 100094) |
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| 摘 要： |
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Experimental study of electron beam based on microwave electron cyclotron resonance plasma cathode |
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| LI Liang,LIU Yi-fei,CHEN Long-wei,WANG Gong,LIU Ming,REN Zhao-xing,LIU Bing-shan,ZHAO Guang-heng. Experimental study of electron beam based on microwave electron cyclotron resonance plasma cathode[J]. Nuclear Fusion and Plasma Physics, 2006, 39(1): 21-27. DOI: 10.16568/j.0254-6086.201901004 |
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| Authors: | LI Liang LIU Yi-fei CHEN Long-wei WANG Gong LIU Ming REN Zhao-xing LIU Bing-shan ZHAO Guang-heng |
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| Affiliation: | (1. Technology and engineering center for space utilization, Chinese Academy of Sciences, Beijing 100094; 2. University of Chinese Academy of Sciences, Beijing 100049; 3. Institute of plasma physics, Chinese Academy of Sciences, Hefei 230031; 4. Key Laboratory of Space Manufacturing Technology, Chinese Academy of Sciences, Beijing 100094; 5. Key Laboratory of Space Utilization, Chinese Academy of Sciences, Beijing 100094) |
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| Abstract: | The generation and control of microwave electron cyclotron resonance (ECR) plasma cathode electron beam is studied experimentally. A complete set of discharge, electron beam extraction, focusing and measuring system was set up. The characteristics and performance of microwave ECR plasmas as electron beam extraction source were studied by measuring the current of water cooling target and the beam spot size on the target. Experimental results indicated that both microwave input power and accelerating voltage are conducive to improving electron beam current. The influence of gas pressure on the electron beam current was complex. With the increase of gas pressure, the electron beam current is characterized by decreasing first and then increasing. The extracted electron current of microwave ECR plasma cathode can reach 75mA at gas pressure of 7×10−4Pa, and the energy of the electron beam can reach 9keV. The energy utilization can reach 0.6. By adjusting the current of the focusing coil, the diameter of electron beam spot is reduced from 20mm to 13mm and the electron beam current keeps the value unchanged. |
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