THERMIONIC SOURCES FOR HIGH-BRIGHTNESS ELECTRON-BEAMS

被引：65

作者：

THOMAS, RE ^{[1
]}

GIBSON, JW ^{[1
]}

HAAS, GA ^{[1
]}

ABRAMS, RH ^{[1
]}

机构：

[1] USN,RES LAB,BK SYST,WASHINGTON,DC 20375

来源：

IEEE TRANSACTIONS ON ELECTRON DEVICES | 1990年 / 37卷 / 03期

关键词：

D O I：

10.1109/16.47802

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：

This paper surveys the capabilities and limitations of modern thermionic electron sources for producing high emission density (> 10 A/cm2) high-brightness beams. The emphasis is on dispenser cathodes. The fabrication techniques and operating mechanisms that determine the operating limitations of existing commercial cathodes are discussed. In addition, the potential for future cathode improvements that have been demonstrated in various prototype structures are described. © 1990 IEEE

引用

页码：850 / 861

页数：12

共 22 条

[1]

Falce L., 1979, U.S. Patent, Patent No. 4165473

[2]

FALCE LR, 1984, STUDY M CATHODE AGIN

[3] COMPUTER-CONTROLLED TECHNIQUES FOR HIGH EMISSION DENSITY MAPPING OF THERMIONIC CATHODES [J].