Study on injection locked gyrotron with pre-bunched beam

Ma Guowu; Zhuo Tingting; Hu Linlin; Sun Dimin; Chen Hongbin; Meng Fanbao

doi:10.11884/HPLPB201830.180025

Volume 30 Issue 8

Aug. 2018

Turn off MathJax

Article Contents

Article Navigation > High Power Laser and Particle Beams > 2018 > 30(8): 083004

Ma Guowu, Zhuo Tingting, Hu Linlin, et al. Study on injection locked gyrotron with pre-bunched beam[J]. High Power Laser and Particle Beams, 2018, 30: 083004. doi: 10.11884/HPLPB201830.180025

Citation:

Ma Guowu, Zhuo Tingting, Hu Linlin, et al. Study on injection locked gyrotron with pre-bunched beam[J]. High Power Laser and Particle Beams, 2018, 30: 083004. doi: 10.11884/HPLPB201830.180025

Ma Guowu, Zhuo Tingting, Hu Linlin, et al. Study on injection locked gyrotron with pre-bunched beam[J]. High Power Laser and Particle Beams, 2018, 30: 083004. doi: 10.11884/HPLPB201830.180025

Citation:

Ma Guowu, Zhuo Tingting, Hu Linlin, et al. Study on injection locked gyrotron with pre-bunched beam[J]. High Power Laser and Particle Beams, 2018, 30: 083004. doi: 10.11884/HPLPB201830.180025

PDF( 6858 KB)

Study on injection locked gyrotron with pre-bunched beam

doi: 10.11884/HPLPB201830.180025

Institute of Applied Electronics, CAEP, Mianyang 621900, China

Received Date: 2018-01-22
Rev Recd Date: 2018-04-02
Publish Date: 2018-08-15

Abstract

Abstract

A 40 kW injection locked gyrotron is designed based on theoretical calculations and simulations. The interaction structure is formed by two cavities which operate under TE₀₁-TE₀₃ mode pair. The state of the beam across the pre-bunching cavity is calculated with the fixed profile theory, and the operation parameters of the gyrotron under free oscillation state is calculated with the self-consistent theory. The regulation of the oscillation frequency varying with the parameters is achieved, based on which the locking bandwidth is proposed. A PIC code is used for simulating the injection locking state, a gain of 30.5 dB and a locking bandwidth of 20 MHz are achieved under a drifting length of 7 mm. If the drifting length or the input power is increased, the locking bandwidth could be wider. The calculations and simulations show that injection locking of the 40 kW gyrotron is feasible.
- gyrotron,
- injection locking,
- pre-bunching

FullText(HTML)

References(12)

References

[1]	Thumm M. Recent advances in the worldwide fusion gyrotron development[J]. IEEE Trans Plasma Sci, 2014, 42(3): 590-599. doi: 10.1109/TPS.2013.2284026
[2]	Ergakov V S, Moiseev M A. Theory of synchronization of oscillations in a cyclotron-resonance maser monotron by an external signal[J]. Radiophysics & Quantum Electronics, 1975, 18(1): 89-97.
[3]	Bazhanov V S, Ergakov V S, Moiseev M A. Synchronization of CRM monotron by electron-beam modulation[J]. Radiophysics & Quantum Electronics, 1977, 20(1): 90-95.
[4]	Manheimer W M. Theory of the multi-cavity phase locked gyrotron oscillator[J]. International Journal of Electronics, 1987, 63(1): 29-47. doi: 10.1080/00207218708939106
[5]	Manheimer W M, Fliflet A W, Gold S H, et al. The NRL (Naval Research Laboratory)phase-locked gyrotron oscillator program for SDIO/IST[R]. NRL Memorandum Report 6163, 1998.
[6]	Gold S H, Fliflet A W, Black W M, et al. Highpower multi-cavity phase-locked gyrotron oscillator experiment[C]//13th Int Conf on Infrared and Millimeter Waves. 1988: 326-327.
[7]	唐昌建, 杨中海, 刘濮鲲. 高功率回旋管锁相[J]. 强激光与粒子束, 1995, 7(1): 49-56. https://www.cnki.com.cn/Article/CJFDTOTAL-QJGY501.006.htm Tang Changjian, Yang Zhonghai, Liu Pukun. Phase-locking of high power gyrotron. High Power Laser and Particle Beams, 1995, 7(1): 49-56 https://www.cnki.com.cn/Article/CJFDTOTAL-QJGY501.006.htm
[8]	Guo H Z, Hoppe D J, Rodgers J, et al. Phase-locking of a second-harmonic gyrotron oscillator using a quasi-optical circulator to separate injection and output signals[C]//IEEE Int Conf on Plasma Science. 1995: 211-212.
[9]	Jin Jianbo. Quasi-optical mode converter for a coaxial cavity gyrotron[D]. Chengdu: Southwest Jiaotong University, 2005.
[10]	刘建卫, 赵青. 准光模式变换器研究与设计[J]. 强激光与粒子束, 2013, 25(10): 2663-2666. doi: 10.3788/HPLPB20132510.2663 Liu Jianwei, Zhao Qing. Research and design of quasi-optical mode converter. High Power Laser and Particle Beams, 1995, 7(1): 49-56. doi: 10.3788/HPLPB20132510.2663
[11]	Danly B G, Temkin R J. Generalized nonlinear harmonic gyrotron theory[J]. Phys Fluids, 1986, 29(2): 561-567.
[12]	Fliflet A W, Read M E, Chu K R, et al. A self-consistent field theory for gyrotron oscillators: application to a low Q gyromonotron[J]. International Journal of Electronics, 1982, 53(6): 505-521.