| 碳碳复合阴极在相对论速调管放大器中的应用 |
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| 引用本文： | 王淦平, 张福勤, 黄华, 等. 碳碳复合阴极在相对论速调管放大器中的应用[J]. 强激光与粒子束, 2016, 28: 053005. doi: 10.11884/HPLPB201628.053005 |
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| 作者姓名： | 王淦平 张福勤 黄华 刘振帮 向飞 李春霞 朱磊 |
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| 作者单位： | 1.中国工程物理研究院 应用电子学研究所, 高功率微波技术重点实验室, 四川 绵阳 621 900;;;2.中南大学 粉末冶金国家重点实验室, 长沙 41 0083 |
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| 摘 要： | 研制了一种碳纤维分布具有高取向性的碳碳复合材料, 并采用该材料制作的阴极开展了相对论速调管放大器的实验研究。实验结果表明：碳碳复合阴极爆炸发射的点火机制以尖端场增强为主, 运行1000发后碳纤维结构稳定, 重复频率25 Hz运行时输出微波功率大于1 GW, 脉冲宽度大于100 ns, 阴极发射电流密度约3.82 kA/cm2。碳碳复合阴极在启动速度、电流延迟时间及阻抗特性等方面性能还有待进一步的研究。
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| 关 键 词： | 碳碳复合阴极 重复频率 爆炸发射 高功率微波 |
| 收稿时间： | 2015-10-15 |
| 修稿时间： | 2015-12-24 |
Application of carbon/carbon composite cathode in relativistic klystron amplifier |
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| Wang Ganping, Zhang Fuqin, Huang Hua, et al. Application of carbon/carbon composite cathode in relativistic klystron amplifier[J]. High Power Laser and Particle Beams, 2016, 28: 053005. doi: 10.11884/HPLPB201628.053005 |
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| Authors: | Wang Ganping Zhang Fuqin Huang Hua Liu Zhenbang Xiang Fei Li Chunxia Zhu Lei |
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| Affiliation: | 1. Science and Technology on High Power Microwave Laboratory,Institute of Applied Electronics,CAEP,P.O.Box 919-1015,Mianyang 621900,China;;;2. State Key Laboratory for Powder Metallurgy,Central South University,Changsha 410083,China |
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| Abstract: | A novel carbon/carbon composite cathode with carbon fibers perpendicular to the surface is developed and used in the relativistic klystron amplifier(RKA). The experimental results show that the field enhanced on the whisker is the main ignition of the explosive emission. RKA can steadily run at the frequency of 25 Hz with an output microwave power more than 1 GW, a pulse duration beyond 100 ns and a current density of 3.82 kA/cm2. The parameters of the carbon/carbon composite cathode such as start-up speed, current delay time and impedance characteristic still need to be studied in the future. |
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| Keywords: | carbon carbon composite cathode repetitive frequency explosive emission high power microwave |
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