Title : 
An improved low power heater cathode assembly for space-TWT
         
        
            Author : 
Shiji Yu ; Mingfeng Meng ; Xiaobao Su ; Huiming Fan ; Yanrong Xin
         
        
            Author_Institution : 
Inst. of Electron., Chinese Acad. of Sci., Beijing, China
         
        
        
        
        
        
            Abstract : 
This paper presents an improved low power heater cathode assembly structure for space-TWT. Several factors were involved in power efficiency of heater cathode assembly, such as heat shield thickness, structure. Experimental result shows Heater power can decrease to 2.5W when cathode temperature is 950°C Simulation using ANSYS software on these change in heater cathode assembly was achieved.
         
        
            Keywords : 
cathodes; electronic engineering computing; simulation; travelling wave tubes; ANSYS software; heat shield thickness; low power heater cathode assembly; simulation; space-TWT; Films; Heating; heat shield; heater cathode assembly; low power; slot structure;
         
        
        
        
            Conference_Titel : 
Vacuum Electron Sources Conference and Nanocarbon (IVESC), 2010 8th International
         
        
            Conference_Location : 
Nanjing
         
        
            Print_ISBN : 
978-1-4244-6645-0
         
        
        
            DOI : 
10.1109/IVESC.2010.5644266