Influence of electronic beam reflux on efficiency of high power foil less diode

Xiang Fei; Luo Min; Li Chunxia; Luo Guangyao; Wang Peng

doi:10.11884/HPLPB201830.170321

Volume 30 Issue 12

Dec. 2018

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Xiang Fei, Luo Min, Li Chunxia, et al. Influence of electronic beam reflux on efficiency of high power foil less diode[J]. High Power Laser and Particle Beams, 2018, 30: 125002. doi: 10.11884/HPLPB201830.170321

Citation:

Xiang Fei, Luo Min, Li Chunxia, et al. Influence of electronic beam reflux on efficiency of high power foil less diode[J]. High Power Laser and Particle Beams, 2018, 30: 125002. doi: 10.11884/HPLPB201830.170321

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Influence of electronic beam reflux on efficiency of high power foil less diode

doi: 10.11884/HPLPB201830.170321

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

Received Date: 2017-12-06
Rev Recd Date: 2018-07-08
Publish Date: 2018-12-15

Abstract

Abstract

This paper analyzes the distribution and correlation of electrical field and magnetic field located at the emission domain in the solenoid for the high power foil less diode using over-mode microwave device based the single electronic moving equations.It is confirmed that the electronic beam transmission efficiency is correlated with the reflux.The results from experimental research indicate that distinct power efficiency was explicated for the emission electronic beam from foil less diode with different radius cathode when the guiding magnetic field inside the magnetic solenoid was bigger.When the beam radius was 48 mm the electronic beam transmission efficiency was more than 95%, when the beam radius was more than 90 mm the efficiency was smaller than 75%.
- high power,
- foil less diode,
- electron beam transmission efficiency,
- overmoded microwave device

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References(10)

References

[1]	Zhang J, Jin Z X, Yang J H, et al. Recent advance in long-pulse HPM sources with repetitive operation in S-, C-, and X-bands[J]. IEEE Trans Plasma Sci, 2011, 39: 1438. doi: 10.1109/TPS.2011.2129536
[2]	Chena B, Xua G S, Gaoa B W. L-H power threshold studies with tungsten/carbon divertor on the EAST tokamak[J]. Radiation Effects & Defects in Solids, 2016, 171(5): 359-373.
[3]	姚领, 雷勇, 朱英伟. 考虑磁场径向分量的高温超导储能磁体几何结构优化配置[J]. 低温物理学报, 2016, 38(1): 60-64. https://www.cnki.com.cn/Article/CJFDTOTAL-DWWL201601012.htm Yao Ling, Lei Yong, Zhu Yingwei. Geometry configuration optimization of high temperature SMES considering the component of magnetic flux density. Chinese Journal of Low Temperature Physics, 2016, 38(1): 60-64 https://www.cnki.com.cn/Article/CJFDTOTAL-DWWL201601012.htm
[4]	刘列, 刘永贵, 张亚洲. 无箔二极管中引导磁场对电子回流的影响[J]. 国防科技大学学报, 2002, 24(2): 101-106. doi: 10.3969/j.issn.1001-2486.2002.02.023 Liu Lie, Liu Yonggui, Zhang Yazhou. The influence of guiding magnetic field to the e-beam reflux in foil-less diode. Journal of National University of Defense Technology, 2002, 24(2): 101-106 doi: 10.3969/j.issn.1001-2486.2002.02.023
[5]	朱旭智, 刘大纲, 王慧慧. 速调管电子回流现象研究及收集极设计[J]. 真空电子技术, 2015(6): 35-38. doi: 10.3969/j.issn.1002-8935.2015.06.010 Zhu Xuzhi, Liu Dagang, Wang Huihui. Studies on electrons returning in klystrons and on collector design. Vacuum Electronics, 2015(6): 35-38 doi: 10.3969/j.issn.1002-8935.2015.06.010
[6]	Afanas K V, Vagner M I, Kutenkov O P, et al. Plasma physics current characteristics of quasi-planar vacuum diodes with explosive-emission cathode made of various materials at a high-voltage pulse duration of a few nanoseconds[J]. Russian Physics Journal, 2012, 55(7): 772-780. doi: 10.1007/s11182-012-9880-8
[7]	Hendricks K J, Watrous J, Humphries S, et al. Generation, propagation and diagnostics of a long pulse annular electron beam for an HPM source[C]//19th IEEE International Pulsed Power Conference, 2013: 1147-114.
[8]	汤俊萍, 杨莉, 邱爱慈, 等. 纳秒脉冲电压下真空沿面闪络的过程分析[J]. 试验与研究, 2008, 31(2): 30-34. Tang Junping, Yang Li, Qiu Aici, et al. Exploration of surface flashover process in vacuum under nanosecond pulses. Experiment and Research, 2008, 31(2): 30-34
[9]	Wu P, Huo S F, Sun J, et al. Influence of emission threshold of explosive emission cathodes on current waveform in foilless diodes[J]. Physics of Plasmas, 2015, 22: 083104. doi: 10.1063/1.4928090
[10]	Chandra R, Roy A, Kalyanasundaram S, et al. Explosive emission properties of cathode materialism relativistic electron beam generation[J]. IEEE Transactions on Plasma Science, 2014, 42(11): 3491-3497.