Plasma Acceleration from RF Discharge in Dielectric Capillary.

Dunaevsky, A. ; Raitses, Y. ; Fisch, N. J.

Technical Information Center Oak Ridge Tennessee

关键词: Rf discharges;    Capillarity;    Plasmas;    Plasma flow;    Ion energy;   

RP-ID  :  DE2005842400

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

Plasma acceleration from rf discharge in dielectric capillary was demonstrated. Observed plasma flow had ion energies of approx.100 eV and electron energies of approx.20 eV. The discharge was powered by a MHz-range rf generator and fed by Ar. Experimental results indicate possible validity of assumptions about formation of a potential difference at the open end of the capillary and presence of hot electron fraction in the capillary discharge. Simplicity and small dimensions of the source are attractive for micro-propulsion applications.