Studying of Some Characteristics and parameters of Argon Glow discharge plasma Using Hollow Anode Diameter

Authors

  • Shamo Kh. Al-Hakary University of Zakho
  • Esraa A. Mohammed Saeed University of Zakho
  • Diyar A. Bleej University of Zakho
  • Suzan M. Haji University of Zakho
  • Sahme A. Hussain Directorate of Douhk Education

DOI:

https://doi.org/10.25271/2018.6.1.401

Keywords:

hollowanode, argon glow discharge, double probes, plasma parameters, negative glow region, MATLAB program

Abstract

Hollow anode argon glow discharge plasma has been investigated experimentally at different argon gas pressure from constant discharge current. A sufficient high voltage has been applied among the electrodes to obtain breakdown. Firstly, we studied the influence of hollow anode diameter on the breakdown voltage and Paschens law. The inner diameters of hollow anodes used in our work were (10, 15, 20, 25, 30, 35, and 40) mm. Secondly under the same conditions we extended our study to measure some plasma parameters in the negative glow region using direct current argon glow discharge. The temperature and density of electrons in the negative glow were measured using double probes. From the (Ip-Vp) characteristics of double probes, we obtained plasma parameters by using computer MATLAB program. The results showed that the measured Pashence's curve closes to the well-known theoretical Pashence's law. The breakdown voltage and its minimum value decreased with increasing the hollow anode diameter. The Paschen’s curve became wide and shifted to lower pressure with increasing the diameter. The reduction area of hollow anode caused dens and luminous intensity of plasma to occur in the negative glow region. Increasing the diameter resulted in decreasing the temperature and density of electron.

Author Biographies

Shamo Kh. Al-Hakary, University of Zakho

Department of Physics, Faculty of Science, University of Zakho, Kurdistan Region, Iraq.

Esraa A. Mohammed Saeed, University of Zakho

Department of Physics, Faculty of Science, University of Zakho, Kurdistan Region, Iraq.

Diyar A. Bleej, University of Zakho

Department of Physics, Faculty of Science, University of Zakho, Kurdistan Region, Iraq.

Suzan M. Haji, University of Zakho

Department of Physics, Faculty of Science, University of Zakho, Kurdistan Region, Iraq.

Sahme A. Hussain, Directorate of Douhk Education

Department of Physics, Faculty of Science, University of Zakho, Kurdistan Region, Iraq.

References

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Science Journal of University of Zakho

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Published

2018-03-30

How to Cite

Al-Hakary, S. K., Mohammed Saeed, E. A., Bleej, D. A., Haji, S. M., & Hussain, S. A. (2018). Studying of Some Characteristics and parameters of Argon Glow discharge plasma Using Hollow Anode Diameter. Science Journal of University of Zakho, 6(1), 26–31. https://doi.org/10.25271/2018.6.1.401

Issue

Vol. 6 No. 1 (2018): March, 2018

Section

Science Journal of University of Zakho

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