Controlled-Porosity Cathodes for High-Current-Density Applications

被引：34

作者：

Ives, R. Lawrence ^{[1
]}

Falce, Louis R. ^{[2
]}

Miram, George ^{[1
]}

Collins, George ^{[1
]}

机构：

[1] Calabazas Creek Res Inc, San Mateo, CA 94404 USA

[2] Semicon Associates, Lexington, KY 40510 USA

来源：

IEEE TRANSACTIONS ON PLASMA SCIENCE | 2010年 / 38卷 / 06期

关键词：

Cathodes; controlled porosity; dispenser cathode; electron guns;

D O I：

10.1109/TPS.2010.2046427

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：

Controlled-porosity reservoir cathodes that can operate at high current densities with long lifetimes are described. The fabrication process is economical and adaptable to high volume production. The cathodes exhibit superior performance over sintered powdered tungsten cathodes. This paper describes the fabrication, presents measured performance, and compares the results with conventional dispenser cathodes.

引用

页码：1345 / 1353

页数：9

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