Design and simulation of the transverse magnetic scanning system of gyrotron oscillator collector

Li Han; Yang Chen; Luo Jirun; Fan Yu; Zhu Min; Guo Wei

doi:10.11884/HPLPB202133.210053

Volume 33 Issue 7

Jul. 2021

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Li Han, Yang Chen, Luo Jirun, et al. Design and simulation of the transverse magnetic scanning system of gyrotron oscillator collector[J]. High Power Laser and Particle Beams, 2021, 33: 073009. doi: 10.11884/HPLPB202133.210053

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Li Han, Yang Chen, Luo Jirun, et al. Design and simulation of the transverse magnetic scanning system of gyrotron oscillator collector[J]. High Power Laser and Particle Beams, 2021, 33: 073009. doi: 10.11884/HPLPB202133.210053

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Design and simulation of the transverse magnetic scanning system of gyrotron oscillator collector

doi: 10.11884/HPLPB202133.210053

Li Han^{1, 2
,},
Yang Chen^{1, 2},
Luo Jirun^{1, 2},
Fan Yu¹,
Zhu Min¹,
Guo Wei¹

1.
The Key Laboratory of Science and Technology on High Power Microwave Sources and Technologies, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
2.
School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China

Received Date: 2021-02-22
Rev Recd Date: 2021-06-02

Available Online: 2021-06-28

Publish Date: 2021-07-15

Abstract

Abstract

Starting from reducing the peak power and average power on the collector surface of a gyrotron oscillator, we have designed a magnetic field scanning system composed of 12 transverse elliptical AC coils and 2 longitudinal DC coils. According to the design parameters of the collector electrode of 140 GHz, TE_{28, 8} mode, 1 MW gyrotron oscillator, and combining electromagnetic field theory with particle-in-cell (PIC) simulation program, the scanning system can realize that the peak and average power density of the electron beam on the collector surface are not more than 404.91 W/cm² and 244.01 W/cm² respectively with a scanning length of 443.33 mm, which effectively alleviates the pressure of power dissipation and cooling of the collector.
- gyrotron oscillator,
- collector,
- transverse magnetic field scanning,
- elliptical coil,
- power density

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References(16)

References

[1]	Thumm M. State-of-the-art of high-power gyro-devices and free electron masers[J]. Journal of Infrared, Millimeter and Terahertz Waves, 2020, 41(1): 1-140. doi: 10.1007/s10762-019-00631-y
[2]	Illy S, Dammertz G, Alberti S, et al. Comparison of different collector coil concepts for high power CW gyrotrons[C]//International Conference on Infrared and Millimeter Waves. 2000: 183-184.
[3]	Baxi C B, Callis R W, Gorelov I A, et al. Thermal stress analysis of 1 MW gyrotron collector[J]. Fusion Engineering and Design, 2007, 82(5/14): 731-735.
[4]	Thumm M, Alberti S, Arnold A, et al. EU megawatt-class 140-GHz CW gyrotron[J]. IEEE Transactions on Plasma Science, 2007, 35(2): 143-153. doi: 10.1109/TPS.2007.892144
[5]	陈辉. 回旋管输出系统及收集极热分析技术[D]. 成都: 电子科技大学, 2015: 54-63. Chen Hui. Gyrotron output system and collector extreme thermal analysis technology[D]. Chengdu: University of Electronic Science and Technology of China, 2015: 54-63
[6]	Jiang W, Luo Y, Yan R. Numerical design and optimization of a curved collector for a Q-band gyro-traveling wave tube[J]. IEEE Transactions on Electron Devices, 2013, 61(1): 147-150.
[7]	Ives L, Neilson J, Song L. Improved gyrotron collectors[C]//IEEE International Vacuum Electronics Conference. 2007.
[8]	董坤, 蒋伟. 磁场扫描系统在U波段回旋行波管收集极中的应用[J]. 真空电子技术, 2019(6):85-88, 93. (Dong Kun, Jiang Wei. Application of magnetic field scanning system in U-band cyclotron traveling wave tube collector[J]. Vacuum Electronics, 2019(6): 85-88, 93
[9]	Thumm M. Recent advances in the worldwide fusion gyrotron development[J]. IEEE Transactions on Plasma Science, 2014, 42(3): 590-599. doi: 10.1109/TPS.2013.2284026
[10]	Manuilov V N, Smirnov D A, Malygin S A, et al. Numerical simulation of the gyrotron collector systems with rotating magnetic field[C]//Joint 29th International Conference on Infrared and Millimeter Waves. 2004.
[11]	郑志清, 罗勇, 蒋伟, 等. 回旋行波管收集极的热分析[J]. 强激光与粒子束, 2013, 25(3):721-726. (Zheng Zhiqing, Luo Yong, Jiang Wei, et al. Thermal analysis of cyclotron traveling wave tube collector[J]. High Power Laser and Particle Beam, 2013, 25(3): 721-726 doi: 10.3788/HPLPB20132503.0721
[12]	王亚茹, 耿志辉, 徐寿喜, 等. W波段回旋管收集极横向场扫描散焦系统的设计与仿真[J]. 真空科学与技术学报, 2016, 36(11):1247-1253. (Wang Yaru, Geng Zhihui, Xu Shouxi, et al. Design and simulation of W-band gyrotron collector transverse field scanning defocus system[J]. Journal of Vacuum Science and Technology, 2016, 36(11): 1247-1253
[13]	Illy S, Schmid M, Braune H, et al. Enhanced transversal collector sweeping for high power CW gyrotrons[C]//IEEE International Conference on Infrared. 2008.
[14]	Schmid M, Illy S, Dammertz G, et al. Transverse field collector sweep system for high power CW gyrotrons[J]. Fusion Engineering & Design, 2007, 82(5/14): 744-750.
[15]	Tang N, Guo G, Niu X, et al. Simulation of sweeping system of collector for the 140 GHz gyrotron[C]//2019 12th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies. 2019.
[16]	Illy S, Beringer M H, Kern S, et al. Collector design studies for a 1 MW cylindrical-cavity and a 4 MW coaxial-cavity gyrotron[C]//IEEE 35th International Conference on Infrared Millimeter and Terahertz Waves. 2010.