Longtime operation of S-band multi-beam relativistic klystron amplifier

Huang Hua; Li Shifeng; Sun Limin; Tan Jie; Wang Peng; Liu Zhenbang; Xiang Qifan

doi:10.11884/HPLPB202234.220184

Volume 34 Issue 11

Sep. 2022

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Huang Hua, Li Shifeng, Sun Limin, et al. Longtime operation of S-band multi-beam relativistic klystron amplifier[J]. High Power Laser and Particle Beams, 2022, 34: 113001. doi: 10.11884/HPLPB202234.220184

Citation:

Huang Hua, Li Shifeng, Sun Limin, et al. Longtime operation of S-band multi-beam relativistic klystron amplifier[J]. High Power Laser and Particle Beams, 2022, 34: 113001. doi: 10.11884/HPLPB202234.220184

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Longtime operation of S-band multi-beam relativistic klystron amplifier

doi: 10.11884/HPLPB202234.220184

Science and Technology on High Power Microwave Laboratory, Institute of Applied Electronics, CAEP, Mianyang, 621900, China

Received Date: 2022-06-12
Rev Recd Date: 2022-08-12

Available Online: 2022-08-16

Publish Date: 2022-09-20

Abstract

Abstract

To realize a high power microwave source of longtime operation with a low guiding magnetic field, an S-band, GW level multi-beam relativistic klystron amplifier (RKA) has been investigated by means of theoretical modeling, numerical simulation and experiment. Firstly, a four-cavity multi-beam RKA was optimized with a one-dimension large signal code, and optimal working parameters are obtained. Under the conditions of 530 kV voltage, 4.7 kA current, and 14 beams, a 1.1 GW averaged microwave power with efficiency 43% was generated with the code. Subsequently, the beam-wave interaction parameters obtained from the code were verified with a PIC code, and a 992 MW output microwave power with efficiency 37% was obtained. At last, a long time operation experiment was conducted. In such an experiment, a 934 MW averaged microwave power with 69 ns pulse width and 33% efficiency was generated under the conditions of 530 kV voltage, 5.4 kA current, 20 Hz repetition frequency for 1 s, 0.39 T guiding magnetic field and 1.7 kW input microwave power. In addition, for the experiment of 20 Hz repetition frequency and 10 min operating time, a 889 MW averaged microwave power was obtained with 42 ns averaged pulse width. The investigation results make a strong foundation for the S-band RKAs of low guiding magnetic field and longtime operation.
- high power microwave,
- relativistic klystron amplifier,
- intense relativistic electron beams,
- longtime operation,
- multi-beam

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References(11)

References

[1]	Barker R J, Schamiloglu E. High-power microwave sources and technologies[M]. New York: Wiley-IEEE Press, 2001.
[2]	Benford J, Swegle J A, Schamiloglu E. High power microwaves[M]. 3rd ed. Boca Raton: CRC Press, 2016.
[3]	Zhou Chuanming, Liu Guozhi, Liu Yonggui, et al. High-power microwave source[M]. Beijing: Atomic Press, 2007.
[4]	黄华, 吴洋, 刘振帮, 等. 锁频锁相的高功率微波器件技术研究[J]. 物理学报, 2018, 67:088402 doi: 10.7498/aps.67.20172684 Huang Hua, Wu Yang, Liu Zhenbang, et al. Review on high power microwave device with locked frequency and phase[J]. Acta Physica Sinica, 2018, 67: 088402 doi: 10.7498/aps.67.20172684
[5]	Sun Limin, Huang Hua, Li Shifeng, et al. Investigation on high-efficiency beam-wave interaction for coaxial multi-beam relativistic klystron amplifier[J]. Electronics, 2022, 11: 281. doi: 10.3390/electronics11020281
[6]	黄华, 陈昭福, 袁欢, 等. S波段长脉冲相对论速调管重复频率运行稳定性研究[J]. 强激光与粒子束, 2020, 32:103002 doi: 10.11884/HPLPB202032.200167 Huang Hua, Chen Zhaofu, Yuan Huan, et al. Research on stability of repetitive operation of S-band, long-pulse relativistic klystron[J]. High Power Laser and Particle Beams, 2020, 32: 103002 doi: 10.11884/HPLPB202032.200167
[7]	Huang Hua, Chen Zhaofu, Li Shifeng, et al. Investigation on pulse-shortening of S-band, long pulse, four-cavity, high power relativistic klystron amplifier[J]. Physics of Plasmas, 2019, 26: 033107. doi: 10.1063/1.5086734
[8]	Li Shifeng, Huang Hua, Duan Zhaoyun, et al. Demonstration of a Ka-band oversized coaxial multi-beam relativistic klystron amplifier for high power millimeter-wave radiation[J]. IEEE Electron Device Letters, 2022, 43(1): 131-134. doi: 10.1109/LED.2021.3130170
[9]	Liu Zhenbang, Song Falun, Jin Hui, et al. Coherent combination of power in space with two X-band gigawatt coaxial multi-beam relativistic klystron amplifiers[J]. IEEE Electron Device Letters, 2022, 43(2): 284-287. doi: 10.1109/LED.2021.3137927
[10]	丁耀根. 大功率速调管的理论与计算模拟[M]. 北京: 国防工业出版社, 2008: 86-110 Ding Yaogen. Theory and computer simulation of high power klystron[M]. Beijing: National Defense Industry Press, 2008: 86-110
[11]	Huang Hua, Jin Xiao, Lei Lurong, et al. High power and repetitively pulsed operation of a relativistic extended-interaction-cavity oscillator[C]//Proceedings of the 17th International Conference on High Power Particle Beams. Mianyang, China, 2008: 1-3.