Title :
Wave dispersions in a warm electron beam
Author_Institution :
Electron Devices, L-3 Commun., San Carlos, CA, USA
Abstract :
A dispersion equation is derived for three-dimensional waves in a warm constant-density cylindrical electron beam confined in a uniform magnetic field. The transverse temperature decreases with radius, from a maximum on axis to zero at the beam edge in a manner that results in rigid-rotor equilibria. The model introduces both an axial thermal parameter TAXN and a transverse thermal parameter TEQ.
Keywords :
plasma boundary layers; plasma density; plasma temperature; plasma waves; TAXN; TEQ; axial thermal parameter; dispersion equation; electron beam emission; rigid-rotor equilibria; sharp beam edge; three-dimensional waves; transverse temperature; transverse thermal parameter; uniform magnetic field; warm constant-density cylindrical electron beam; wave dispersion; Cathodes; Communication industry; Electron beams; Electron devices; Magnetic confinement; Magnetic fields; Plasma temperature; Poisson equations; Surface waves; Thermodynamics;
Conference_Titel :
Plasma Science, 2010 Abstracts IEEE International Conference on
Conference_Location :
Norfolk, VA
Print_ISBN :
978-1-4244-5474-7
Electronic_ISBN :
0730-9244
DOI :
10.1109/PLASMA.2010.5534373
