空心阴极几何形状对前真空等离子体电子源参数的影响

IF 1.3 4区物理与天体物理 Q3 PHYSICS, FLUIDS & PLASMAS

IEEE Transactions on Plasma Science Pub Date : 2025-04-22 DOI:10.1109/TPS.2025.3556416

Ilya Yu. Bakeev;Aleksandr S. Klimov;Efim M. Oks;Aleksey A. Zenin

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引用次数: 0

摘要

我们提出了基于扩展等离子体发射表面的空心阴极辉光放电的阴极腔几何形状对前真空压力等离子体阴极电子源参数影响的研究结果。我们证明了源的电子发射电流非单调地依赖于阴极腔输出孔径的直径。通过优化阴极腔几何结构，可以获得更高的电子发射电流和电子束功率，从而为电子束技术中使用该源来改性高温介电材料开辟了可能性。

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Influence of Hollow Cathode Geometry on the Parameters of a Forevacuum Plasma Electron Source

We present the results of our exploration of the influence of cathode cavity geometry on the parameters of a forevacuum-pressure plasma-cathode electron source based on a hollow cathode glow discharge with an extended plasma emission surface. We show that the electron emission current of the source depends nonmonotonically on the diameter of the cathode cavity output aperture. Increased electron emission current and electron beam power are obtained with optimized cathode cavity geometry, opening up possibilities for the use of the source in electron-beam technologies for the modification of high-temperature dielectric materials.

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来源期刊

IEEE Transactions on Plasma Science 物理-物理：流体与等离子体

CiteScore

3.00

自引率

20.00%

发文量

538

审稿时长

3.8 months

期刊介绍： The scope covers all aspects of the theory and application of plasma science. It includes the following areas: magnetohydrodynamics; thermionics and plasma diodes; basic plasma phenomena; gaseous electronics; microwave/plasma interaction; electron, ion, and plasma sources; space plasmas; intense electron and ion beams; laser-plasma interactions; plasma diagnostics; plasma chemistry and processing; solid-state plasmas; plasma heating; plasma for controlled fusion research; high energy density plasmas; industrial/commercial applications of plasma physics; plasma waves and instabilities; and high power microwave and submillimeter wave generation.