Analysis of Hollow Cathode Aperture Wall Profile on Pseudospark Discharge-Based Sheet Electron Beam Source

被引：11

作者：

Singhal, Kushagra ^{[1
]}

Gurjar, Nikita ^{[1
]}

Jain, Sahil ^{[1
]}

Vishant ^{[1
]}

Abhishek, Anand ^{[2
]}

Starodubov, A. V. ^{[3
,4
]}

Ryskin, N. M. ^{[4
,5
]}

Kumar, Niraj ^{[1
]}

机构：

[1] CSIR, Cent Elect Engn Res Inst CEERI, Vacuum Electron Devices Design Grp, Pilani 333031, Rajasthan, India

[2] CSIR, Cent Elect Engn Res Inst CEERI, Societal Elect Grp, Pilani 333031, Rajasthan, India

[3] Saratov NG Chernyshevskii State Univ, Educ & Res Inst Nanostruct & Biosyst, Saratov 410012, Russia

[4] Russian Acad Sci RAS, Kotelnikov Inst Radio Engn & Elect, Saratov Branch, Saratov 410019, Russia

[5] Saratov NG Chernyshevskii State Univ, Fac Nonlinear Proc, Saratov 410012, Russia

来源：

IEEE TRANSACTIONS ON PLASMA SCIENCE | 2021年 / 49卷 / 01期

基金：

俄罗斯基础研究基金会;

关键词：

Aperture wall profile; hollow cathode; pseudospark (PS) discharge; sheet electron beam; SIMULATION;

D O I：

10.1109/TPS.2020.3040593

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

In this article, an investigation has been performed to analyze the role of hollow cathode aperture wall profile on pseudospark (PS) discharge-based single gap sheet electron beam source. A simulation study using COMSOL Multiphysics has been carried out for different hollow cathode aperture wall profile parameters, such as thickness and radius of curvature of aperture wall. The role of hollow cathode aperture wall thickness "t" and the radius of curvature of aperture wall "R" for different gas pressures, 16-20 Pa, and the corresponding applied gap voltage 16-20 kV have been studied. The hollow cathode aperture wall thickness has been analyzed for the range of similar to 1-3 mm, keeping the constant aspect ratio 12:1, while the radius of curvature of aperture wall has been analyzed for the range of 0-3 mm for different wall thicknesses. Experimental studies have also been performed to analyze the role of the thickness of the aperture wall on PS discharge. A good correlation has been obtained between the simulation and experimental studies.

引用

页码：302 / 306

页数：5

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