Application of carbon/carbon composite cathode in relativistic klystron amplifier

Wang Ganping; Zhang Fuqin; Huang Hua; Liu Zhenbang; Xiang Fei; Li Chunxia; Zhu Lei

doi:10.11884/HPLPB201628.053005

Volume 28 Issue 05

Mar. 2016

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Article Navigation > High Power Laser and Particle Beams > 2016 > 28(05): 053005

Zhang Yang, Wang Xianghui, Zhang Jie, et al. Comparison of two discontinuous spectral element methods[J]. High Power Laser and Particle Beams, 2018, 30: 023004. doi: 10.11884/HPLPB201830.170169

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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

Zhang Yang, Wang Xianghui, Zhang Jie, et al. Comparison of two discontinuous spectral element methods[J]. High Power Laser and Particle Beams, 2018, 30: 023004. doi: 10.11884/HPLPB201830.170169

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Application of carbon/carbon composite cathode in relativistic klystron amplifier

doi: 10.11884/HPLPB201628.053005

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

Received Date: 2015-10-15
Rev Recd Date: 2015-12-24
Publish Date: 2016-05-15

Abstract

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.
- carbon/carbon composite cathode,
- repetitive frequency,
- explosive emission,
- high power microwave

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沈阳化工大学材料科学与工程学院沈阳 110142

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Application of carbon/carbon composite cathode in relativistic klystron amplifier

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Application of carbon/carbon composite cathode in relativistic klystron amplifier

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