Title :
P1.24: Diocotron instability of a relativistic sheet electron beam
Author :
Han, Ying ; Ruan, Cunjun ; Wang, Yong ; Zhang, Xiaofeng
Author_Institution :
Key Lab. of High Power Microwave Sources & Technol., Chinese Acad. of Sci., Beijing, China
Abstract :
The diocotron instability of a relativistic sheet electron beam propagating through a uniform magnetic field is studied using a macroscopic cold fluid model. The general eigenvalue equation is obtained for low-frequency perturbations. In the limit of a long axial wavelength, a dispersion relation is derived for the special case of a sharp boundary density profile and used to study stability properties in the parameter regime where the plasma frequency is much smaller than the cyclotron frequency.
Keywords :
eigenvalues and eigenfunctions; electron beams; magnetic fields; plasma instability; axial wavelength; cyclotron frequency; diocotron instability; dispersion relation; eigenvalue equation; low-frequency perturbation; macroscopic cold fluid model; magnetic field; plasma frequency; relativistic sheet electron beam; sharp boundary density profile; Dispersion; Eigenvalues and eigenfunctions; Electron beams; Equations; Frequency; Magnetic fields; Magnetic liquids; Plasma density; Plasma properties; Plasma stability; diocotron instability; dispersion relation; eigenvalue equation; sheet electron beam;
Conference_Titel :
Vacuum Electronics Conference (IVEC), 2010 IEEE International
Conference_Location :
Monterey, CA
Print_ISBN :
978-1-4244-7098-3
DOI :
10.1109/IVELEC.2010.5503559
