Title :
Secondary electron emission of the cathode in high-power continuous wave magnetron tubes
Author :
Shikai Qi ; Xiaoxia Wang ; Jirun Luo ; Shike Zhao ; Qinglan Zhao ; Yun Li ; Qi Zhang
Author_Institution :
Key Lab. of High Power Microwave Sources & Technol., Inst. of Electron., Beijing, China
fDate :
June 30 2014-July 4 2014
Abstract :
Different treatments on the cathode surface are adopted to enhance the secondary electron emission(SEE)of the cathode in high-power continuous wave magnetron tubes, which show that SEE coefficient of the pure tungsten cathode sprayed sand for coarseness and coated W-Re5%wt film is higher than that of untreated pure tungsten cathode.
Keywords :
cathodes; magnetrons; rhenium; secondary electron emission; spraying; surface treatment; tungsten; W-Re; cathode secondary electron emission; cathode sprayed sand; cathode surface treatment; high-power continuous wave magnetron tubes; Cathodes; Electron emission; Electron tubes; Materials; Surface treatment; Tungsten;
Conference_Titel :
Vacuum Electron Sources Conference (IVESC), 2014 Tenth International
Conference_Location :
St. Petersburg
Print_ISBN :
978-1-4799-5770-5
DOI :
10.1109/IVESC.2014.6892068
