Multiarc Plasma Electron Emitter for Generating a Radially Convergent Beam

IF 0.4 4区工程技术 Q4 ENGINEERING, MULTIDISCIPLINARY

Instruments and Experimental Techniques Pub Date : 2025-06-17 DOI:10.1134/S0020441225700253

M. S. Torba, S. Yu. Doroshkevich, M. S. Vorob’ev, A. A. Grishkov, N. N. Koval’, R. A. Kartavtsov, M. A. Mokeev, D. A. Shpanov

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Abstract

The results of studies on the generation of a radially converging electron beam in a source with a multiarc grid plasma emitter are presented. Generation modes have been achieved that are sufficient for modifying the surface of metallic materials and cylindrical products with a calculated energy density of up to 20 J/cm² at a pulse duration of up to 500 μs. Using an automated system for measuring plasma parameters and a single Langmuir probe in the range of arc discharge current 50–120 A and pulse duration 50–500 μs, measurements of the distribution of emission plasma parameters in a grid plasma emitter in the azimuthal and axial directions were carried out. Comparisons of the electronic branches of the probe characteristic at different working gas pressures are presented. The created electron source opens up new opportunities for comprehensive modification of the surface of various materials and products of cylindrical or more complex shapes in order to change the functional and operational properties of this surface.

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用于产生径向会聚光束的多弧等离子体电子发射器

本文介绍了在多弧栅等离子体发射极源中产生径向会聚电子束的研究结果。在脉冲持续时间为500 μs的情况下，计算得到的能量密度可达20 J/cm2，足以修饰金属材料和圆柱形产品的表面。在电弧放电电流50 ~ 120 a、脉冲持续时间50 ~ 500 μs范围内，利用等离子体参数自动测量系统和单个朗缪尔探针，对栅格等离子体发射极中发射等离子体参数在方位和轴向的分布进行了测量。比较了不同工作气压下探针电子分支的特性。所创造的电子源为各种材料和圆柱形或更复杂形状的产品的表面的全面修改开辟了新的机会，以改变该表面的功能和操作特性。

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来源期刊

Instruments and Experimental Techniques 工程技术-工程：综合

CiteScore

1.20

自引率

33.30%

发文量

113

审稿时长

4-8 weeks

期刊介绍： Instruments and Experimental Techniques is an international peer reviewed journal that publishes reviews describing advanced methods for physical measurements and techniques and original articles that present techniques for physical measurements, principles of operation, design, methods of application, and analysis of the operation of physical instruments used in all fields of experimental physics and when conducting measurements using physical methods and instruments in astronomy, natural sciences, chemistry, biology, medicine, and ecology.