Title :
Features of wave processes in pre-modulated electron beam and its interaction with electromagnetic field
Author :
Krasnova, Galina M.
Author_Institution :
Nat. Res. Saratov State Univ., Saratov, Russia
Abstract :
Wave processes in pre-modulated electron stream interacted with electromagnetic field has been considered in the framework of two-dimensional linear theory. Influences of space charge and finite focusing magnetic field have been taken into account. In some cases space charge leads to instability appearance. By setting initial conditions in different ways the effect of magnetic field on interaction has been investigated in photo-TWT, carcinotrode (BWO with emission automodulation), BWO in pre-generation regime, also its influence on behavior of noise factor in TWT has been considered. Successive approximation and dispersion equation methods have been applied for solving.
Keywords :
electromagnetic fields; electron beams; magnetic fields; photocathodes; space charge; travelling wave tubes; TWT; dispersion equation methods; electromagnetic field; finite focusing magnetic field; noise factor; pre-modulated electron beam; space charge; two-dimensional linear theory; wave processes; Electron beams; Equations; Magnetic fields; Mathematical model; Noise; Radio frequency; Space charge;
Conference_Titel :
Plasma Sciences (ICOPS) held with 2014 IEEE International Conference on High-Power Particle Beams (BEAMS), 2014 IEEE 41st International Conference on
Conference_Location :
Washington, DC
Print_ISBN :
978-1-4799-2711-1
DOI :
10.1109/PLASMA.2014.7012771
