DocumentCode
2811421
Title
Manufacturing for high-performance multibeam cathodes
Author
Shengyi, Yin ; Hongla, Zhang ; Yaogen, Ding
Author_Institution
Key Labouratory of High Power Microwave Sources & Technol., Chinese Acad. of Sci., Beijing, China
fYear
2009
fDate
28-30 April 2009
Firstpage
287
Lastpage
288
Abstract
In order to improve the performance of a multibeam cathode, the technologies such as tungsten powder grading, cathode evaporation measuring, surface chemical cleaning, ternary alloy coating, and cathode manufacturing procedures etc. were studied systematically. The research showed, with these technologies, the current density and resistance to breakdown of the multibeam cathodes could be enhanced remarkably, and the manufactured multibeam cathodes were suitable for a 200 kW grid-modulated multibeam klystron.
Keywords
cathodes; klystrons; travelling wave tubes; TWT; grid-modulated multibeam klystron; multibeam cathodes; travelling wave tubes; Cathodes; Chemical technology; Cleaning; Coatings; Current density; Electrical resistance measurement; Manufacturing; Powders; Surface resistance; Tungsten; cathode; emission; evaporation; multibeam;
fLanguage
English
Publisher
ieee
Conference_Titel
Vacuum Electronics Conference, 2009. IVEC '09. IEEE International
Conference_Location
Rome
Print_ISBN
978-1-4244-3500-5
Electronic_ISBN
978-1-4244-3501-2
Type
conf
DOI
10.1109/IVELEC.2009.5193410
Filename
5193410
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