Title :
Langmuir probe and ion acoustic velocity measurement of the concentration of two species in a multi-dipole plasma
Author :
Hala, A.M. ; Hershkowitz, Noah
Author_Institution :
Dept. of Eng. Phys., Wisconsin Univ., Madison, WI, USA
Abstract :
Summary form only given, as follows. The concentration of two species in a multi-dipole plasma was determined by measuring the ion acoustic wave group velocity and the electron temperature in a multi-dipole plasma device. The wave was launched from a grid immersed in the plasma and was detected by a probe. Electron temperature was found separately from a Langmuir probe trace. The technique was performed in helium/xenon and argon/xenon plasmas. Typical parameters of the plasma were T/sub e//spl sim/0.5 to 3 eV, density 10/sup 10/ cm/sup -3/, plasma potential of 3 to 5 V and pressure range from 1 to 20 mTorr.
Keywords :
Langmuir probes; argon; helium; plasma temperature; plasma transport processes; velocity; xenon; 0.5 to 3 eV; 1 to 20 mtorr; 3 to 5 V; Ar-Xe; Ar/Xe plasma; He-Xe; He/Xe plasma; Langmuir probe; electron temperature; ion acoustic velocity; ion acoustic wave group velocity; multi-dipole plasma device; plasma immersed grid; two species concentration; Acoustic devices; Electrons; Plasma density; Plasma devices; Plasma measurements; Plasma temperature; Plasma waves; Probes; Velocity measurement; Xenon;
Conference_Titel :
Plasma Science, 2000. ICOPS 2000. IEEE Conference Record - Abstracts. The 27th IEEE International Conference on
Conference_Location :
New Orleans, LA, USA
Print_ISBN :
0-7803-5982-8
DOI :
10.1109/PLASMA.2000.855057
