STUDY OF PROPERTIES OF ARGON / HELIUM GLOW DISCHARGE WITH COPPER CATHODE USING THE ELECTRICAL PROBE

In this study a low pressure DC glow discharge plasma source has been designed. The aim of our study is to investigate the glow discharge plasma produced by such system. We used electrostatic probes (single and double) as diagnostic tools for the ignited Investigating the produced glow discharge plasma in both Ar and He discharges based on determining the electrical properties of such plasma like; plasma space potential, electric field distributions, plasma densities (electrons and ions), electron temperaThe experimental work started with studying current–voltage characteristics of the DC glow discharge for various values of pressure, in the range (0.08 to 1 torr) for both argon and helium. This was followed by investigating the Paschen curve for both Ar The I-V characteristic curves for both single and double probes, upon which most of the plasma parameters could be derived, were obtained for Ar and He discharges over various discharge conditions. Measurements were carried out in different regions of disPlasma space potential Vs for Ar and He at various discharge conditions were determined by using the single probe, and applying the zero-cross method, according to which the probe characteristic curve was differentiated twice. The axial and radial distribatoms of the amide group. from the microanalytical data, the stoichiometry of thecomplexes reacts with Mg(II), Ca(II), Ba(II) and Sr(II) by molar ratios (2:1)(paracetamol: metal). The thermal behaviour (TG/DTG) of the complexes was studiedand kinetic parameters were determined by Horowitz–Metzger and Coats–Redfernmethods. The ligand and its metal complexes were screened for antibacterial activityagainst and fungicidal activity.