Computational studies for plasma filamentation by magnetic field in atmospheric microwave discharge

研究成果: ジャーナルへの寄稿学術論文査読

14 被引用数 (Scopus)

抄録

Plasma filamentation is induced by an external magnetic field in an atmospheric discharge using intense microwaves. A discrete structure is obtained at low ambient pressure if a strong magnetic field of more than 1 T is applied, due to the suppression of electron diffusion, whereas a diffusive pattern is generated with no external field. Applying a magnetic field can slow the discharge front propagation due to magnetic confinement of the electron transport. If the resonance conditions are satisfied for electron cyclotron resonance and its higher harmonics, the propagation speed increases because the heated electrons easily ionize neutral particles. The streamer velocity and the pattern of the microwave plasma are positively controlled by adjusting two parameters - the electron diffusion coefficient and the ionization frequency - through the resonance process and magnetic confinement, and hot, dense filamentary plasma can be concentrated in a compact volume to reduce energy loss in a plasma device like a microwave rocket.

本文言語英語
論文番号223504
ジャーナルApplied Physics Letters
105
22
DOI
出版ステータス出版済み - 2014 12月 1

フィンガープリント

「Computational studies for plasma filamentation by magnetic field in atmospheric microwave discharge」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル