DocumentCode :
1018410
Title :
Measurements of the ion drag force on micrometer sized particles in the double plasma device DODO
Author :
Hirt, Markus ; Block, Dietmar ; Piel, Alexander
Author_Institution :
Inst. fur Exp. und Angewandte Phys., Christian-Albrechts-Univ. Kiel, Germany
Volume :
32
Issue :
2
fYear :
2004
fDate :
4/1/2004 12:00:00 AM
Firstpage :
582
Lastpage :
585
Abstract :
Experiments on the quantitative determination of the ion drag force of an ion beam on free-falling dust particles in a thermionic filament discharge are presented. The ion beam component of the plasma is oriented perpendicular to the dominating gravitational force. Therefore, the ion drag force is directly given by the observed particle deflection from the vertical direction. The deflection angle is measured as a function of beam energy. The obtained results are compared with theory. Good agreement is found with the Barnes model of the ion drag force, when the linearized Debye-length λD is used.
Keywords :
Langmuir probes; discharges (electric); dusty plasmas; plasma devices; plasma-beam interactions; DODO double plasma device; beam energy function; free-falling dust particles; gravitational force; ion drag force measurements; linearized Debye-length; micrometer sized particles; particle deflection angle; plasma ion beam component; thermionic filament discharge; Drag; Energy measurement; Force measurement; Gravity; Ion beams; Particle measurements; Plasma devices; Plasma measurements; Size measurement; Thermal force; Complex plasma; forces on particles; ion beam; ion collection; ion scattering;
fLanguage :
English
Journal_Title :
Plasma Science, IEEE Transactions on
Publisher :
ieee
ISSN :
0093-3813
Type :
jour
DOI :
10.1109/TPS.2004.828448
Filename :
1308518
Link To Document :
بازگشت