DocumentCode
2900778
Title
Preparation of impregnated barium scandate cathode and its application
Author
Jiang, Dingjian ; Hong, Sikong ; Zhou, Chenfeng ; Wang, Dean ; Liu, Xueque
Author_Institution
Beijing Kedian Microwave Electron. Co. Ltd., China
fYear
2004
fDate
6-10 Sept. 2004
Firstpage
206
Lastpage
207
Abstract
The paper introduces an impregnated barium scandate cathode, which uses scandium, barium, calcium, aluminum carbonates as emission materials which are impregnated into the tungsten matrix substrate directly. The preparation process is described. The cathode can be used not only to several types of microwave tubes successfully, but also to large demountable traveling wave linear accelerators reliably. The cathode can be activated, after exposure to air several times and still keeps its emission ability.
Keywords
aluminium; barium compounds; calcium; microwave tubes; scandium; thermionic cathodes; thermionic electron emission; Ba-Sc-Al-O; aluminum carbonates; calcium; emission materials; impregnated barium scandate cathode; microwave tubes; preparation process; scandium; traveling wave linear accelerators; tungsten matrix substrate; Atmosphere; Barium; Boats; Cathodes; Copper; Current density; Pulse amplifiers; Substrates; Temperature; Tungsten;
fLanguage
English
Publisher
ieee
Conference_Titel
Vacuum Electron Sources Conference, 2004. Proceedings. IVESC 2004. The 5th International
Print_ISBN
0-7803-8437-7
Type
conf
DOI
10.1109/IVESC.2004.1414199
Filename
1414199
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