Title :
Electron beam modulation and leakage currents during self-sustaining secondary emission in magnetron guns
Author :
Agafonov, A.V. ; Fedorov, V.M. ; Tarakanov, V.P.
Author_Institution :
Lebedev (P.N.) Phys. Inst., Moscow, Russia
Abstract :
Problems of magnetic insulation violation inside a vacuum coaxial diode with dense electron flow are considered from the point of view of the development as low-voltage as high-efficiency relativistic magnetrons with secondary emission cathode. The numerical model of nonstationary nonuniform secondary electron emission from a cathode was developed. The results of computer simulations of an electron clouds formation due to nonlinear azimuthal instability under the condition of strong nonuniform secondary self-sustaining emission are described
Keywords :
electron beams; electron guns; electronic engineering computing; leakage currents; magnetrons; numerical analysis; secondary electron emission; computer simulations; dense electron flow; electron beam modulation; electron clouds formation; leakage currents; magnetic insulation violation; magnetron guns; nonlinear azimuthal instability; nonstationary nonuniform secondary electron emission; numerical model; selfsustaining secondary emission; vacuum coaxial diode; Cathodes; Coaxial components; Diodes; Electron beams; Electron emission; Insulation; Leakage current; Magnetrons; Numerical models; Optical modulation;
Conference_Titel :
High-Power Particle Beams, 1998. BEAMS '98. Proceedings of the 12th International Conference on
Conference_Location :
Haifa
Print_ISBN :
0-7803-4287-9
DOI :
10.1109/BEAMS.1998.816994
