Title :
Life test studies on RV dispenser cathode life test studies on RV dispenser cathode
Author :
Zhang, Mingchen ; Zhang, Honglai ; Yu, Shiji ; Liu, Pukun
Author_Institution :
R&D of Center for Space TWT, Chinese Acad. of Sci., Beijing, China
Abstract :
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.
Keywords :
cathodes; life testing; RV dispenser cathode; current accelerated life test; emission current density; life test studies; temperature accelerated life test; Cathodes; Electronic mail; RV dispenser cathode; life test; space TWT;
Conference_Titel :
Vacuum Electronics Conference (IVEC), 2011 IEEE International
Conference_Location :
Bangalore
Print_ISBN :
978-1-4244-8662-5
DOI :
10.1109/IVEC.2011.5747030
