Title :
Time transient sheaths in collisionless and collisional plasmas
Author :
Je-Hun Woo ; Gon-Ho Kim
Author_Institution :
Dept. of Phys., Hanyang Univ., Ansan, South Korea
Abstract :
Summary form only given, as follows. In this study, collisional effects on the property of time dependent sheath are experimentally observed. The experiment is carried out for the very thin cylindrical target with various pulse bias and operating pressures. The rise time of pulse and the operating pressure vary. Sheath propagation is observed using biased Langmuir probe to determine the plasma parameters and the sheath evolution. The experimental observation to the time dependent sheath with various pressures will be presented.
Keywords :
Langmuir probes; plasma collision processes; plasma sheaths; Bohm speed; biased Langmuir probe; collisional plasma; collisionless plasma; ion collisions; operating pressure; rise time; sheath propagation; time dependent sheath; time transient sheaths; very thin cylindrical target; Cathodes; Electrodes; Fluid flow measurement; Magnetic field measurement; Physics; Plasma density; Plasma measurements; Plasma sheaths; Velocity measurement; Voltage;
Conference_Titel :
Plasma Science, 2003. ICOPS 2003. IEEE Conference Record - Abstracts. The 30th International Conference on
Conference_Location :
Jeju, South Korea
Print_ISBN :
0-7803-7911-X
DOI :
10.1109/PLASMA.2003.1228940
