Title :
3-D Finite Element Analysis of TWT grid electron guns
Author :
Coco, S. ; Laudani, A. ; Pollicino, G. ; Dionisio, R. ; Martorana, R.
Author_Institution :
DIEES, Catania Univ.
Abstract :
A novel three-dimensional FE procedure for the analysis of electron guns inside TWT is presented, illustrating its main features. In this procedure electron trajectories modeling cathode emission are obtained by solving a Vlasov-Poisson system of equations together with relativistic dynamical equations of motion, under consistent injection condition. This coupled electro-mechanical problem is solved iteratively by assuming stationary conditions
Keywords :
Poisson equation; Vlasov equation; electron guns; finite element analysis; iterative methods; travelling wave tubes; 3D finite element analysis; TWT; Vlasov-Poisson system; cathode emission; electro-mechanical problem; electron trajectories modeling; grid electron guns; relativistic dynamical motion equations; three-dimensional FE procedure; travelling wave tube; Cathodes; Electromagnetic analysis; Electron emission; Electron guns; Finite element methods; Geometry; Iron; Magnetic fields; Poisson equations; Space charge;
Conference_Titel :
Electromagnetic Field Computation, 2006 12th Biennial IEEE Conference on
Conference_Location :
Miami, FL
Print_ISBN :
1-4244-0320-0
DOI :
10.1109/CEFC-06.2006.1632874
