Title :
Pressure field in the cathode-anode region of a high-power klystron amplifier
Author :
Degasperi, F.T. ; Verardi, S.L.L. ; Motta, C.C.
Author_Institution :
Faculdade de Tecnologia de Sao Paulo, Brazil
Abstract :
The pressure field in the region between the cathode and the anode of a high-power klystron amplifier is investigated in order to increase its life time. The study is conducted using a 1.3 GHz, 100 A and 240 kV high-power klystron with five reentrant coaxial cavities, assembled in a cylindrical drift tube 1.2 m long. This work takes into account the specific conductances and all important gas sources, as the degassing of the drift tube, the cavities walls, the cathode, the anode, and the collector.
Keywords :
electron guns; finite element analysis; klystrons; outgassing; 1.3 GHz; 100 A; 240 kV; 3-D finite element method; cathode-anode region; cylindrical drift tube; degassing; density profile; electron gun region; high-power klystron amplifier; pressure field; reentrant coaxial cavities; specific conductances; Anodes; Boundary conditions; Cathodes; Coaxial components; Electron tubes; High power amplifiers; Klystrons; Pulse amplifiers; Throughput; Vacuum technology;
Conference_Titel :
Vacuum Electronics Conference, 2004. IVEC 2004. Fifth IEEE International
Print_ISBN :
0-7803-8261-7
DOI :
10.1109/IVELEC.2004.1316249
