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Life test studies on RV dispenser cathode life test studies on RV dispenser cathode

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4 Author(s)
Mingchen Zhang ; R&D of Center for Space TWT, Chinese Acad. of Sci., Beijing, China ; Honglai Zhang ; Shiji Yu ; Pukun Liu

In this paper, a new type RV dispenser cathode is developed as it is capable of meeting the growing requirements concerning life and current density. This kind of RV dispenser cathode shows the higher emission current density and longer lifetime than that of convention dispenser cathodes. Temperature and current accelerated life test are used to evaluate the new type cathodes. At present, the results for temperature accelerated life test show that predicted life of the RV dispenser cathodes exceeds 260,000 hours at a current density of 1.5 A/cm2 at 980°C.

Published in:
Vacuum Electronics Conference (IVEC), 2011 IEEE International

Date of Conference: 21-24 Feb. 2011

Page(s):
371 - 372
Print ISBN:
978-1-4244-8662-5
INSPEC Accession Number:
11931854
Conference Location :
Bangalore
Digital Object Identifier :
10.1109/IVEC.2011.5747030
Product Type:
Conference Publications

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