الفهرس 
Description of Plasma Physics and Glow DischargeOnly 14 pages are availabe for public view
 |  | from | 142 |  |  |
| | | from | 142 | | |
Abstract
The dc glow discharge plasma experiment was designed, established, and operated at Ain Shams University (Egypt). The plasma is generated under a low-pressure range (0.15 - 0.70 Torr) with a maximum dc power supply of 200 W. The experiment consists of three main parts – the discharge chamber, the vacuum system and the powering circuit.
The cylindrical discharge chamber is made of stainless steel and has two movable cylindrical copper electrodes (cathode and anode), a vacuum system to evacuate the chamber before inserting the Ar gas at the operating pressure, an electric circuit that includes a power supply, potential divider, and high voltage probe.
In this work, we established a cold plasma experiment with specifications and characterizations similar to dc glow discharge plasma experiments in other laboratories around the world. We started with determining the characteristics of the dc glow discharge plasma such as Paschen curves, electrical plasma parameters, and plasma properties (electron temperature and ion density).
After validating our experimental results, we used it as a plasma source and studied the effect of the generated plasma on the electrical and morphological characteristics of a Cu foil, such as the electrical conductivity and the surface adhesive forces using a printed circuit board (PCB). The measurements show an improvement in the electrical conductivity of a Cu foil and the adhesion forces of the Cu foil surface after plasma exposure.