On beam-plasma interaction in a dust-electron plasma

Author

Rosenberg, Marlene ; Shukla, Padma K.

Author_Institution

Dept. of Electr. & Comput. Eng., California Univ., San Diego, La Jolla, CA, USA

Volume

29

Issue

2

fYear

2001

fDate

4/1/2001 12:00:00 AM

Firstpage

202

Lastpage

207

Abstract

The generation of electron plasma waves by low-energy electron beams in a dust-electron plasma, generated by UV induced photoemission or radiative heating of grains, is considered. It is shown that finite amplitude Langmuir waves might be produced due to the usual two-stream (beam-plasma) instability under certain conditions. Langmuir waves may saturate by beam trapping and attain finite amplitudes. Large amplitude Langmuir waves can nonlinearly interact with dust acoustic waves due to the parametric process. However, for the parameters considered, the rates of the decay and modulational interactions of Langmuir waves in the dust-electron plasma are much smaller than electron collisional damping rates

Keywords

dusty plasmas; electron beam effects; photoemission; plasma Langmuir waves; plasma instability; plasma-beam interactions; UV induced photoemission; beam-plasma interaction; decay interactions; dust acoustic waves; dust-electron plasma; electron collisional damping rates; electron plasma waves; finite amplitude Langmuir waves; low-energy electron beams; modulational interactions; parametric process; radiative heating; two-stream beam-plasma instability; Acoustic waves; Dusty plasma; Electron beams; Electron emission; Laboratories; Photoelectricity; Plasma sources; Plasma stability; Plasma waves; Thermionic emission;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/27.923694

Filename

923694