Effect of a DC Electric Field on Spatial Evolution of an External Wave in a Small Cold Beam-a Weakly Collisional Plasma System
Memoirs of the Faculty of Engineering, Yamaguchi University Volume 35 Issue 1
Page 171-182
published_at 1984
Title
電子ビーム・プラズマ系の外部励起波に及ぼす直流電場の作用
Effect of a DC Electric Field on Spatial Evolution of an External Wave in a Small Cold Beam-a Weakly Collisional Plasma System
Creators
Fukumasa Osamu
Creators
Saeki Setsuo
Source Identifiers
The role of an applied static electric field on the nonlinear wave-particle interaction in a small cold beam-plasma system is investigated by using the single wave model. The model includes detuning δω, the difference between the frequency ω of the wave and the frequency ω_0 of the most unstable mode, and weak collisions ν in the plasma. In the absence of collisions, the beam momentum can be clamped while the wave power increases secularly in space. Besides, the wave enhancement is strongly dependent on the sign of δω=ω-ω_0. For a negative δω, detuning leads to an increase of the wave power comparing with the one without detuning. It is also found that weak collisions, ν/ω_0&acd
Languages
jpn
Resource Type
departmental bulletin paper
Publishers
山口大学工学部
Date Issued
1984
File Version
Version of Record
Access Rights
open access
Relations
[ISSN]0372-7661
[NCID]AN00244228
Schools
工学部