| 虚阴极振荡激励高功率微波的数值模拟 |
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| 引用本文： | 王秩雄,陈雨生.虚阴极振荡激励高功率微波的数值模拟[J].强激光与粒子束,1992,4(3):362-372. |
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| 作者姓名： | 王秩雄 陈雨生 |
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| 作者单位： | 西北核技术研究所，西北核技术研究所，西北核技术研究所 西安市69信箱 710024，西安市69信箱 710024，西安市69信箱 710024 |
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| 摘 要： | 模拟了轴对称虚阴极振荡器产生微波的过程。根据实验装置的特点,建立了理想的物理模型。从物理学的基本规律出发,用CIC方法编制了二维空间、三个动量分量的2 1/2维、全电磁、相对论性的数值模拟程序。选择柱状电子束进行模拟,获得了正确的计算结果和清晰的物理图象,并对计算结果作了分析。
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| 关 键 词： | 粒子模拟 相对论电子束 虚阴极 微波管 |
NUMERICAL SIMULATIONS OF VIRTUAL CATHODE OSCILLATION AND HIGH POWER MICROWAVE GENERATION |
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| Wang Zhixiong,Chen Yusheng,and Fan Ruyu Northwest Institute of Nuclear Technology,P.O. Box ,Xi'an.NUMERICAL SIMULATIONS OF VIRTUAL CATHODE OSCILLATION AND HIGH POWER MICROWAVE GENERATION[J].High Power Laser and Particle Beams,1992,4(3):362-372. |
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| Authors: | Wang Zhixiong Chen Yusheng and Fan Ruyu Northwest Institute of Nuclear Technology PO Box Xi'an |
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| Institution: | Wang Zhixiong,Chen Yusheng,and Fan Ruyu Northwest Institute of Nuclear Technology,P.O. Box 69,Xi'an,710024 |
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| Abstract: | In the paper, a 2 1/2 dimensional, fully electromagnetic, relativistic CIC particle simulation code has been developed. The code is used to simulate the virtual cathode formation and the emission of high power microwave with a cold electron beam of cylindrical symmetry. A virtual cathode will be formed when the injected current exceeds the vaccum limited current of the beam. The current transmitted from the virtual cathode varies with time and its average is larger than the static vaccum limited current. A guide field is applied to confine efficiently the radial motion of the electrons. The virtual cathode oscillates well with a definite cycle. The oscillating axial current causes the microwave radiation and the power concentrates on TM modes. The guide field is in favour of microwave generation. |
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| Keywords: | particle simulation relativistic eletron beam virtual cathode microwave tube |
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