Title :
About Cherenkov and Cyclotron Wave Excitations by Elliptical Relativistic Modulated Electron Beam in a Cylindrical Plasma Column With Elliptical Cross Section
Author :
Jazi, Bahram ; Abdoli-Arani, Abbas
Author_Institution :
Dept. of Phys., Univ. of Kashan, Kashan, Iran
fDate :
3/1/2012 12:00:00 AM
Abstract :
The excitation of electromagnetic waves due to the interaction of modulated density profile of an elliptical relativistic electron beam with the eigenmodes of a magnetized plasma column with elliptical cross section have been analyzed. Theoretically, it is shown that the Cherenkov and fast cyclotron interactions appear between the beam and eigenmodes of plasma column, and in continuum it is proved that the growth rate of the waves in slow cyclotron interaction will be vanished. The dispersion relation of space-charge waves in density-modulated relativistic electron beam in this configuration will be presented, too.
Keywords :
Cherenkov radiation; dispersion relations; plasma filled waveguides; plasma light propagation; plasma-beam interactions; relativistic plasmas; space charge waves; Cherenkov wave excitation; cyclotron wave excitation; cylindrical plasma column; density-modulated relativistic electron beam; dispersion relation; eigenmodes; electromagnetic waves; elliptical cross section; elliptical relativistic modulated electron beam; fast cyclotron interactions; growth rate; magnetized plasma column; modulated density profile; slow cyclotron interaction; space-charge waves; Cyclotrons; Electromagnetic waveguides; Electron beams; Equations; Magnetic tunneling; Plasmas; Elliptical cross section; modulated electron beam; plasma waveguide;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2011.2179680
