The Laminar Electron Flows in Triode Electron Guns with Field Emission

被引：0
|
作者：
Bushuev, Nikolai A. [1 ]
Burtsev, Anton A.
Navrotsky, Igor A.
Shalaev, Pavel D.
机构：
[1] Joint Stock Co Res & Prod Enterprise Almaz, Saratov 410033, Russia
来源：
2014 TENTH INTERNATIONAL VACUUM ELECTRON SOURCES CONFERENCE (IVESC) | 2014年
关键词：
D O I：
暂无
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：
3D simulation of triode electron gun is performed with regards its structure of multiple-tip field emission cathode. The table of geometrical parameters of electron gun is defined (d(g) (a)/D-a = 1.5-4.0; d(g) (a)/d(g) (c)=10(-4) -10(-2)) as well as the optimal potentials of grid with large scale holes where the electrical field is uniform. Thus the effect of electron lens of grid comes to a minimum and laminar electron flow is formed. The computer modeling of 19-beam electron gun with field emission glassy carbon cathode in magnetic field (N=10(6) cm2) and planar single-beam electron gun with CNT cathode (N=4.10(8) cm(-2)) are carried out.
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