SOME ELECTRICAL MEASUREMENTS OF ARGON DC GLOW DISCHARGE
M. A. HASSOUBA
Department of Physics, Faculty of Science, Benha University, Egypt.
A. ALOFFI
Department of Physics, Faculty of Science, Taibah University, KSA.
H. I. EL-NAGGAR *
Department of Physics, Faculty of Science, Benha University, Egypt. and Department of Physics, Faculty of Sciences and Arts, Bisha University, KSA.
*Author to whom correspondence should be addressed.
Abstract
The electrical characteristics of the DC glow discharge are determined. The I - V characteristic curves of the DC glow discharge of Argon gas and Paschen's curves are measured. Two important physical parameters affecting the condition of the discharge are the gas pressure and the inter-electrode distance. Langmuir single probe is used to determine the plasma parameters (e.g., electron temperature Te, ion density Ni and plasma potential VS at different experimental conditions (e.g. gas pressure and discharge current)).
Keywords: DC glow discharge, Paschen's curves, Langmuir single probe