Title :
Correlation of emission behavior and surface feature of Scandia doped dispenser cathodes
Author :
Wang, Jinshu ; Wang, Yanchun ; Wang, Yiman ; Li, Lili ; Liu, Wei ; Zhang, Xizhu
Author_Institution :
Sch. of Mater. Sci. & Eng., Beijing Univ. of Technol., Beijing
Abstract :
In this work we investigated the correlation between the emission properties of Scandia doped dispenser cathodes and their surface features. A proposal for explanation of the observed phenomena has been suggested.
Keywords :
barium compounds; cathodes; electron field emission; Ba-Sc-O; BaW; dispenser cathodes; emission properties; surface features; work function; Cathodes; Current density; Electrons; Laboratories; Life testing; Materials science and technology; Proposals; Surface structures; Temperature; Thermionic emission; scandate cathode; surface analysis; thermionic emission; work function;
Conference_Titel :
Vacuum Electronics Conference, 2008. IVEC 2008. IEEE International
Conference_Location :
Monterey, CA
Print_ISBN :
978-1-4244-1715-5
DOI :
10.1109/IVELEC.2008.4556419
