Effect of Nitrogen Gas Pressure and Hollow Cathode Geometry on the Luminous Intensity Emitted from Glow Discharge Plasma
American Journal of Modern Physics
Volume 2, Issue 6, November 2013, Pages: 276-281
Received: Aug. 25, 2013;
Published: Sep. 30, 2013
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Shamoo K. Awsi, Dept. of Physics, Faculty of Science, Zakho University, Duhok, Iraq
The paper investigates the luminous intensity emitted from dc hollow cathode glow discharge plasma (HCGD) .The experiments were conducted at different nitrogen gas pressures ranged from (0.015 to 0.75Torr) and constant discharge current (Id=1.88 mA).The influence of both pressure and hollow cathode geometry such as diameter and depth of hollow cathode have been studied .The results show that the Photo-Luminous Efficiency emitted from the hollow cathode glow discharge decrease nearly exponentially with the increasing gas pressure. This is due to the characteristics of hollow cathode at the low pressures to produce more energetic excitation. On the other hand, the luminous efficiency increase linearly with the increasing inter-cathode distance of hollow, this is because increasing the inter - cathode distance of hollow cathode is equivalent to the decreasing of gas pressure. However the luminous intensity increase linearly with the depth of hollow cathode ranged from (1up to2.5) cm and then decrease. This behavior of the intensity with both the gas pressure and hollow cathode geometry is satisfactory agreement with previous works.
Shamoo K. Awsi,
Effect of Nitrogen Gas Pressure and Hollow Cathode Geometry on the Luminous Intensity Emitted from Glow Discharge Plasma, American Journal of Modern Physics.
Vol. 2, No. 6,
2013, pp. 276-281.
David Staack, Bakhtier Farouk, AlexsanderGutsol and AlexsanderFridman, "Characterization of a dc Atmospheric Pressure Normal Glow Discharge", Plasma Science and Technology .14(2005) 700-711.
A. Bogaerts, "The glow discharge: an exciting plasma", Journal of Analytical Spectroscopy, Vol. 14, pp.1357-1384, (1999).
Abdou A. Garamoon, Ahmed Samir, Farouk FahmyElecshar, A. Nasai, and Eizaldeen, FKotp, " Spectroscopic Study Of Argon DC Glow Discharge", IEEE Transaction on Plasma Science ,Vol. 35, No. 1, February ( 2007).
B. Mazurek, A. Nawak and A. Tyman, "X- Ray Emission Accompanying Cathode Microdischarge", IEEE Transaction on Electrical Insulation" Vol. 28, No. 4, August (1993).
J Isidorovic, "Paschen's Curve and Spatial Distributions of Emitted Light of Glow Discharge in the Air", Acta Physic .Pol.A88 Supplement, S-37(1995).
Tarek M. Allam, Hanna A. EI- Sayed, Hanna M. Soliman, "Study of Luminous Emission From Coaxial Discharge Device in the Presence of External Transverse Magnetic Field", Energy and Power Engineering , 3, 444-449, 2011.
W. Lochet-Holtgreven, "plasma diagnostics", ed., Ch.11, North Holland, Amsterdam, Holland.(1968)
A. J. Salim, "Study the Properties of Glow Discharge Helium Plasma Using Langmuir Single Probe and Data Acquisition System", M.Sc. Thesis, College of Science, University of Mosul, Iraq.(2007).
Sh.S.Shreen.Muhamad" Effect of Geometrical Factor on Nitrogen Glow Discharge Plasma",Ms.C Thesis , Zakho University , November ( 2011).
E. M. Van veldhuizen, "The Hollow Cathode Glow Discharge Analyzed by optogalvanic and other Studies", PhD Thesis ,Eindhoven University of Technology, Eindhoven.(1983).
J. Chen, S. Jin Park, Z. Fan, J. G. Eden and C. Liu,"Development and Characterization of Micromachined Hollow Cathode Plasma Display Devices", Journal of Microelectromechanical Systems, Vol.11, No.5, P.536-543.(2002).
V. Nehra, A. kumar and H. K. Dwivedi, "Atmospheric Non-Thermal Plasma Sources", International Journal of Engineering, Vol.2, Issue.1, P.53-68.(2007).
David Alexander Staack , " Characterization and Stabilization of atmospheric Pressure Dc Micro plasma and their Applications to thin film Deposition", PhD Thesis , Drexel University , December (2008).
H. kirkici, "hollow cathode discharges for plasma light sources" ELECO'99 International Conference on Electrical and Electronics Engineering, Auburn University, Auburn AL 36849, USA, P.145-148.(1999).
Janosi, Z. Kolozsvary and A. kis, "Controlled Hollow Cathode Effect: New Possibilities for Heating Low-Pressure Furnaces", Metal Science and Heat Treatment, Vol.49, Nos.7-8, P.310-316.(2004).
V. Yu. Bazhennov, A. V. Ryabtsev, I. A. Soloshenko, A. G. Terentyeva, V. V. Tsiolko, A. I. Shchedrin, "Investigation of the Electron Distribution Function in the Glow Discharge with Hollow Cathode", Proceedings of 15th International Symposium on Plasma Chemistry, Orleans, France, Vol.III, P.879-884.(2001).
G.M EL- Aragi, M.A Ayad , M.A.WL- Kolaly and W. Madkour (2010) , " Scattered Ionizing Radiation From Low – Focus Plasma and Radiation Dosimetry Assessment", Vol. 25,No. 4, PP.727-736 October (2010).
18.BimalKumarPramaink, "Microwave Discharge of Nitrogen and Oxygen Gas Mixture for UV Light Source ", A dissertation submitted to a Kochi University oh technology in partial fulfillment of the requirement for the degree of doctor of philosophy. Department of electronic and photonic system Engineering .(2008).
A. Grill, "Cold Plasma in Materials Fabrication From Fundamentals to Application", Institute of Electrical and Electronic Engineers, Inc, New York, USA.(1993).