Recent developments in scandia-doped dispenser cathodes

被引：0
|
作者：
Li, Ji [1 ]
Wang, Hui [1 ]
Gao, Yujuan [1 ]
Yuan, Haiqing [1 ]
Pan, Kexin [1 ]
Zhang, Ke [1 ]
Chen, Qilue [1 ]
Yan, Tiechang [1 ]
Liao, Fujiang [1 ]
Wang, Jinshu [2 ]
Wang, Yiman [2 ]
Liu, Wei [2 ]
机构：
[1] Beijing Vacuum Elect Res Inst, Cathode Elect Lab, Vacuum Elect Natl Lab, POB 749, Beijing 100016, Peoples R China
[2] Beijing Univ Technol, Sch Mat Sci & Engn, Beijing 100022, Peoples R China
来源：
2006 IEEE INTERNATIONAL VACUUM ELECTRONICS CONFERENCE HELD JOINTLY WITH 2006 IEEE INTERNATIONAL VACUUM ELECTRON SOURCES | 2006年
关键词：
scandate cathodes; semiconductor monolayer superposition; dispenser cathodes; nonuniform emission;
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：
We measured SDDCs emission property and made comparison with impregnated scandate (I-Sc). A reasonable explanation on abnormal Schottky effect of SDDCs is given. The authors proposed a "semiconductormonolayer superposition" model to explain emission mechanism of all kinds of thermionic cathodes, including oxide cathodes, M-type cathodes and scandate cathodes. Finally, from the view of engineering application, some improvement ideas and suggestions to future work of SDDCs are given.
引用
收藏
页码：51 / +
页数：2
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