Dynamics of pulsed magnetron discharge in high-current electron guns

被引：1
|
作者：
Kiziridi, P. P. [1 ]
Ozur, G. E. [1 ]
Zyul'kova, L. A. [1 ]
Popov, S. A. [1 ]
Shevelev, S. A. [2 ]
Alekhin, M. A. [1 ,2 ]
机构：
[1] Russian Acad Sci, Inst High Current Elect, Siberian Branch, Tomsk 634055, Russia
[2] Tomsk Polytech Univ, Tomsk 634050, Russia
来源：
TECHNICAL PHYSICS | 2017年 / 62卷 / 11期
基金：
俄罗斯基础研究基金会; 俄罗斯科学基金会;
关键词：
LOW-ENERGY; BEAM;
D O I：
10.1134/S1063784217110147
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
High-speed video filming is applied to investigate low-pressure (argon 0.053-0.133 Pa) pulsed gas discharge dynamics in a planar magnetron built-in the explosive emission cathode of a high-current electron gun. It has been found that, in the beginning, the discharge starts at the side surface of the cathode and then spreads to its face. The stability of the discharge ignition instant at the cathode face as a function of the working pressure of the gas and the cathode design has been studied. It has been found that the pulsed longitudinal magnetic field results in the discharge switching over in the axial direction onto the electron gun collector. A qualitative explanation of the observed discharge behavior has been given.
引用
收藏
页码：1643 / 1650
页数：8
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