Title :
Development of scandate cathode and its prospect_ a review
Author :
Wang, Yiman ; Wang, Jinshu ; Liu, Wei
Author_Institution :
Sch. of Mater. Sci. & Eng., Beijing Univ. of Technol., Beijing, China
Abstract :
Summary form only given. High current density scandate cathodes have aroused great interest in recent years. In this paper the emission performances of scandate cathodes and the possible chemical and physical processes occurred during cathode manufacturing and operation are summarized. Emission mechanisms are further discussed. The major problems of this kind of cathode and its application prospects are reviewed.
Keywords :
cathodes; current density; electron emission; chemical processing; electron emission; emission performance; high current density scandate cathode; physical processing; Barium; Cathodes; Current density; Educational institutions; Electron beams; Temperature; Temperature measurement; Scandate cathode; electron emission; emission mechanism; surface behavior;
Conference_Titel :
Vacuum Electron Sources Conference (IVESC), 2012 IEEE Ninth International
Conference_Location :
Monterey, CA
Print_ISBN :
978-1-4673-0368-2
DOI :
10.1109/IVESC.2012.6264158
