Title :
An Improved Field Emitter Array Electron Gun for TWT
Author :
Li, Xinghui ; Bai, Guodong ; Cai, Shaolun ; Li, Hanyang ; Zhang, Jian ; Ding, Mingqing ; Zhang, Fuquan ; Feng, Jinjun ; Liao, Fujiang
Author_Institution :
Beijing Vacuum Electron. Res. Inst., Beijing
Abstract :
We had met some problems in the research on field emitter array electron gun for TWT. An improved FEA electron gun was designed to overcome these problems. The electron beam trajectory simulation for this gun shows a good transmission characteristic, which can lessen the outgassing from the electrode surfaces. Vacuum baking process and activating process for the FEA were carried out to ensure good electron gun performances.
Keywords :
electron guns; field emitter arrays; travelling wave tubes; TWT; activating process; electrode surfaces; electron beam trajectory simulation; field emitter array electron gun; vacuum baking process; Arc discharges; Cathodes; Electrodes; Electron beams; Electron emission; Electron guns; Fabrication; Field emitter arrays; Surface discharges; Welding; TWT; activating process; field emitter array; trajectory simulation; vacuum baking process;
Conference_Titel :
Vacuum Electronics Conference, 2007. IVEC '07. IEEE International
Conference_Location :
Kitakyushu
Print_ISBN :
1-4244-0633-1
DOI :
10.1109/IVELEC.2007.4283352
