An Axial Foilless Diode Guided by Composite Magnetic Field for the Production of Relativistic Electron Beams

IF 1.1 4区物理与天体物理 Q4 PHYSICS, APPLIED Laser and Particle Beams Pub Date : 2021-02-13 DOI:10.1155/2021/6610870

Chunxia Li, Xiao Jin, Ganping Wang, Beizhen Zhang, H. Gong, Y. Gan, Fei Li, F. Song

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引用次数: 1

Abstract

Foilless diode are widely used in high-power microwave devices, but the traditional foilless diodes have large volume, heavy weight, and high power consumption, which are not conducive to the application of high-power microwave system on mobile platform. In order to reduce the size of the foilless diode, improve the transmission efficiency of electron beams, and reduce the weight and power consumption of the guiding magnetic field system, an axial foilless diode with a composite guiding magnetic field system is developed in this paper. By adjusting the structure size and magnetic field parameters of solenoid coil, permanent magnet, and soft magnet, the configuration of the composite magnetic field is optimized. The diameter of the anode tube is about 40% smaller than that of the original structure, and the weight and power consumption of the guiding magnetic system are about 40% lower than that of the original system when the same axial magnetic field intensity in the uniform region is generated. When the magnetic field strength of the permanent magnet is set as 1.4 T and that of the solenoid coil is in the range of 0.5 T∼1 T, the electron beam transmission efficiency is 100%, and the diode impedance is adjustable in the range of 100 Ω∼240 Ω. The experimental results verify the correctness of the simulation analysis. The experimental results show that when the magnetic field strength of the solenoid coil is 0.98 T (0.5 T) and that of the permanent magnet is 1.4 T, the transmission efficiency of the high-current annular electron beam with a peak voltage of 636 kV (590 kV) and a peak current of 3.3 kA (2.6 kA) is 100%, and the diode impedance is about 194 Ω (220 Ω).

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复合磁场引导下产生相对论电子束的轴向无箔二极管

无箔二极管广泛应用于大功率微波器件中，但传统的无箔二极管体积大、重量重、功耗高，不利于大功率微波系统在移动平台上的应用。为了减小无箔二极管的尺寸，提高电子束的传输效率，降低引导磁场系统的重量和功耗，本文研制了一种具有复合引导磁场系统的轴向无箔二极管。通过调整电磁线圈、永磁体和软磁体的结构尺寸和磁场参数，优化复合磁场的配置。在均匀区产生相同轴向磁场强度时，阳极管直径比原结构小40%左右，导磁系统重量和功耗比原系统低40%左右。当永磁体的磁场强度设置为1.4 T，螺线管线圈的磁场强度设置为0.5 T ~ 1 T时，电子束传输效率为100%，二极管阻抗在100 Ω ~ 240 Ω范围内可调。实验结果验证了仿真分析的正确性。实验结果表明，当电磁线圈的磁场强度为0.98 T (0.5 T)，永磁体的磁场强度为1.4 T时，峰值电压为636 kV (590 kV)，峰值电流为3.3 kA (2.6 kA)的大电流环形电子束的传输效率为100%，二极管阻抗约为194 Ω (220 Ω)。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Laser and Particle Beams PHYSICS, APPLIED-

CiteScore

1.90

自引率

11.10%

发文量

审稿时长

1 months

期刊介绍： Laser and Particle Beams is an international journal which deals with basic physics issues of intense laser and particle beams, and the interaction of these beams with matter. Research on pulse power technology associated with beam generation is also of strong interest. Subjects covered include the physics of high energy densities; non-LTE phenomena; hot dense matter and related atomic, plasma and hydrodynamic physics and astrophysics; intense sources of coherent radiation; high current particle accelerators; beam-wave interaction; and pulsed power technology.