DocumentCode :
625965
Title :
A new impregnated dispenser cathode
Author :
Shengyi Yin ; Zhen Peng ; Qiang Zheng ; Yu Wang ; Xinxin Wang ; Yang Li
Author_Institution :
Key Lab. of High Power Microwave Sources & Technol., Inst. of Electron., Beijing, China
fYear :
2013
fDate :
21-23 May 2013
Firstpage :
1
Lastpage :
2
Abstract :
We put forward a new type impregnated dispenser cathode, which impregnates the active salt of BaO/SrO/Sc2O3. At 1100□B, the pulse current density of the cathode is up to 86.2A/cm2, 2.7 times of the value of a traditional M-type cathode. It is proposed that, the emission of pores and pore edges caused by Sc2O3 and SrO is the main reason that the new cathode has excellent emission performance.
Keywords :
barium compounds; cathodes; current density; scandium compounds; strontium compounds; BaO-SrO-Sc2O3; M-type cathode; active salt impregnation; impregnated dispenser cathode; pore edge emission; pulse current density; Cathodes; Current density; Films; Microwave devices; Performance evaluation; Temperature measurement; M-type cathode; Sc2O3; SrO; dispenser cathode; emission performance;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Vacuum Electronics Conference (IVEC), 2013 IEEE 14th International
Conference_Location :
Paris
Print_ISBN :
978-1-4673-5976-4
Type :
conf
DOI :
10.1109/IVEC.2013.6570908
Filename :
6570908
Link To Document :
https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=625965
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