DocumentCode :
415685
Title :
High voltage operation of field emission array cathodes
Author :
Ives, Lawrence ; Miram, George ; Read, Mike ; Robinson, Tom ; Phillips, Purobi
Author_Institution :
Calabazas Creek Res., Inc, Saratoga, CA, USA
fYear :
2004
fDate :
27-29 April 2004
Firstpage :
152
Lastpage :
153
Abstract :
The goals of the test are as follows: demonstrate that emission current densities in excess of 100 A/cm2 can be achieved from FEA cathodes in a typical vacuum electron devices; demonstrate that duty factors of interest can be achieved without damage or degradation to the FEA. The near term goal will be to demonstrate CW operation of an FEA cathode at a current emission density in excess of 20 A/cm2. The ultimate goal will be to demonstrate CW operation at the 100 A/cm2 for CCR´s W-Band TWT development. This presentation will describe the design of the test vehicle and test setup. The presentation will primarily focus on the test results and their implications for incorporation of FEAs in typical vacuum electron devices.
Keywords :
cathodes; current density; field emitter arrays; high-voltage techniques; space charge; CW operation; W-Band TWT development; emission current densities; field emission array cathodes; high voltage operation; space charge depression; vacuum electron devices; Cathodes; Costs; Current density; Electrodes; Electron devices; Field emitter arrays; Temperature; Testing; Vehicles; Voltage;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Vacuum Electronics Conference, 2004. IVEC 2004. Fifth IEEE International
Print_ISBN :
0-7803-8261-7
Type :
conf
DOI :
10.1109/IVELEC.2004.1316246
Filename :
1316246
Link To Document :
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