Wave-beam interaction in coaxial relativistic backward wave oscillator

被引：5
|
作者：
机构：
[1] Teng, Yan
[2] Xiao, Renzhen
[3] Song, Zhimin
[4] Sun, Jun
[5] Chen, Changhua
[6] Shao, Hao
[7] Liu, Guozhi
来源：
Teng, Y. (tengy05@mails.tsinghua.edu.cn) | 1600年 / Editorial Office of High Power Laser and Particle Beams, P.O. Box 919-805, Mianyang, 621900, China卷 / 24期
关键词：
Finite difference time domain method - Electromagnetic wave propagation - Microwave oscillators - Microwaves;
D O I：
10.3788/HPLPB20122401.0175
中图分类号：
学科分类号：
摘要：
The physical model is established according to the characteristics of coaxial relativistic backward wave oscillator(CRBWO) to study the wave-beam interaction in CRBWO employing the finite-difference time-domain method. The research indicates that the output efficiency of the wave-beam interaction in CRBWO is sensitively dependent on the reflections on both ends of the wave-beam interaction region. And the distribution of the field in CRBWO is beneficial for the promotion of the output efficiency. In the case of electron beam of 500 keV and 4.0 kA, the calculated output efficiency more than 38% through optimizing and the starting time 7 ns agree with those obtained from previous numerical simulation and experiment results very well. The space charge effect can be considered as a small influence on the wave-beam interaction in CRBWO compared with that in hollow relativistic backward wave oscillator.
引用
收藏
相关论文
共 50 条
  • [11] High-efficiency coaxial relativistic backward wave oscillator
    Teng, Yan
    Xiao, Renzhen
    Song, Zhimin
    Jun, Sun
    Chen, Changhua
    Shao, Hao
    Liu, Guozhi
    Tang, Chuanxiang
    REVIEW OF SCIENTIFIC INSTRUMENTS, 2011, 82 (02):
  • [12] Relativistic backward wave oscillator with multijet electron beam
    M. B. Goykhman
    A. V. Gromov
    V. V. Kladukhin
    S. V. Kladukhin
    N. F. Kovalev
    S. P. Khramtsov
    Technical Physics Letters, 2011, 37 : 171 - 173
  • [13] Relativistic backward wave oscillator with multijet electron beam
    Goykhman, M. B.
    Gromov, A. V.
    Kladukhin, V. V.
    Kladukhin, S. V.
    Kovalev, N. F.
    Khramtsov, S. P.
    TECHNICAL PHYSICS LETTERS, 2011, 37 (02) : 171 - 173
  • [14] Coupling impedance of 1.6 GHz coaxial relativistic backward wave oscillator
    Ju J.
    Ge X.
    Zhong H.
    Shu T.
    Qiangjiguang Yu Lizishu/High Power Laser and Particle Beams, 2010, 22 (01): : 96 - 98
  • [15] Numerical analysis of high frequency characteristics of coaxial relativistic backward wave oscillator
    Wen, Guangjun
    Li, Jiayin
    Xiong, Xiangzheng
    Li, Tianming
    Liu, Shenggang
    Qiangjiguang Yu Lizishu/High Power Laser and Particle Beams, 1997, 9 (03): : 347 - 352
  • [16] Particle simulation of coaxial multi-frequency relativistic backward wave oscillator
    Liu F.
    Meng L.
    Zhang J.
    Li H.
    Song G.
    Qiangjiguang Yu Lizishu/High Power Laser and Particle Beams, 2011, 23 (04): : 1030 - 1034
  • [17] Effect of end reflections on conversion efficiency of coaxial relativistic backward wave oscillator
    Teng, Yan
    Chen, Changhua
    Sun, Jun
    Shi, Yanchao
    Ye, Hu
    Wu, Ping
    Li, Shuang
    Xiong, Xiaolong
    JOURNAL OF APPLIED PHYSICS, 2015, 118 (17)
  • [18] Millimeter Wave Overmoded Relativistic Backward Wave Oscillator
    Elfrgani, Ahmed
    Kuskov, Artem
    Fuks, Mikhail I.
    Schamiloglu, Edl
    2018 IEEE INTERNATIONAL VACUUM ELECTRONICS CONFERENCE (IVEC), 2018, : 243 - 244
  • [19] Investigation of a K-band large coaxial relativistic backward wave oscillator
    Zeng, Fanzheng
    Du, Guangxing
    Wang, Honggang
    Shi, Difu
    PHYSICS OF PLASMAS, 2016, 23 (01)
  • [20] Asymmetric-mode competition in a relativistic backward wave oscillator with a coaxial slow-wave structure
    Ge, Xingjun
    Zhong, Huihuang
    Qian, Baoliang
    Zhang, Jun
    Liu, Lie
    Gao, Liang
    Yuan, Chengwei
    He, Juntao
    APPLIED PHYSICS LETTERS, 2010, 97 (24)
12345