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

fYear

2010

fDate

18-20 May 2010

Firstpage

147

Lastpage

148

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Vacuum Electronics Conference (IVEC), 2010 IEEE International

Conference_Location

Monterey, CA

Print_ISBN

978-1-4244-7098-3

Type

conf

DOI

10.1109/IVELEC.2010.5503559

Filename

5503559