Spatially-resolved spectroscopic measurements on the regions of an argon DC glow discharge

Authors

  • Rommil B. Emperado ⋅ PH National Institute of Physics, University of the Philippines Diliman
  • Jenny Lou B. Sagisi ⋅ PH National Institute of Physics, University of the Philippines Diliman
  • Joshua Immanuel I. Beringuela ⋅ PH National Institute of Physics, University of the Philippines Diliman
  • Wilson O. Garcia ⋅ PH National Institute of Physics, University of the Philippines Diliman

Abstract

Optical emission spectroscopy was performed on the cathode region and positive column of a low pressure argon DC glow discharge. The intensities of selected Ar I and Ar II lines were measured. Relative line intensities at the cathode glow, negative glow and positive column agreed with the known excitation mechanisms in the respective regions. Spatial distribution of electron temperature, Te, was also calculated from line intensity ratios using the steady-state corona approximation. Mean Te values of 1.48 eV to 2.02 eV and 1.68 eV to 1.74 eV were found in the cathode and anode regions, respectively.

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Published

2015-06-03

Issue

2015: Proceedings of the 33rd Samahang Pisika ng Pilipinas Physics Congress

Section

Photonics and Terahertz, Optics and Signal Processing

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How to Cite

[1]
“Spatially-resolved spectroscopic measurements on the regions of an argon DC glow discharge”, Proc. SPP, vol. 33, no. 1, pp. SPP–2015, Jun. 2015, Accessed: Apr. 03, 2026. [Online]. Available: https://proceedings.spp-online.org/article/view/1128