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

fYear

2014

fDate

25-29 May 2014

Firstpage

1

Lastpage

3

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/PLASMA.2014.7012771

Filename

7012771