Influence of Rectangular Aperture Aspect Ratio on Sheet Beam Generation

被引：0
作者：
Gurjar, Nikita [1 ]
Hossain, M. Afaque [1 ]
Sharma, R. K. [1 ]
Kumar, Niraj [1 ]
机构：
[1] Cent Elect Engn Res Inst, CSIR, Microwaves Dept, Pilani, Rajasthan, India
来源：
2019 INTERNATIONAL VACUUM ELECTRONICS CONFERENCE (IVEC) | 2019年
关键词：
Pseudospark (PS) discharge; sheet beam; hollow cathode phase (HCP);
D O I：
10.1109/ivec.2019.8745011
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A Pseudospark discharge based miniaturized sheet electron beam gun has been simulated using COMSOL Multiphysics software. The simulation has been performed to propose the dependency of the aspect ratio of rectangular aperture of hollow cathode on the onset of hollow cathode phase (HCP) as well as the HCP duration. Larger duration of the HCP is a desirable output as it increases the duration of energetic electron beam which leads to an effective beam-wave interaction. Therefore a comparative simulation study of varying aspect ratio with the change in HCP duration has been presented in the paper. A method has been proposed here showing the dependency of the aspect ratio of the rectangular aperture of sheet beam source on the HCP duration. The rectangular aperture aspect ratio has been varied from 5:1 to 12:1 for different applied gap voltage between 20kV to 25kV.
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页数：2
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