Spectroscopic Study of Argon DC Glow Discharge

Abstract

Abstract-In this paper, emission spectra of both positive column (PC) and negative glow (NG) regions of the dc glow discharge have been measured at different pressures and currents. The intensity of the lines in the NG is in the order of five times of that corresponding lines' intensity in the PC region. It is found that the line intensity increases linearly with the discharge current, while it increases as P α with the gas pressure. The electron temperature T e has been estimated using the line-to-lineintensity-ratio technique. It is found that T e derived by this technique generally decreases with the pressure. Also, T e in NG region is about 3/2 of that in the PC.

Plasma Spectroscopy Diagnostics of V2O5 at a Variable of Operating Power and Pressure With Radio Frequency Magnetron Sputtering.

“…6. The intensity of the lines excess the invader pressure excess, where the intensity of the lines, found to be relative to p α , where α is constant, which differs between 0.2 -0.5, adopting on the wavelength (6). Considering Ar I line of wavelength 750.37 nm and ArII line with wavelength 434.5 nm by using NIST we get show the Table (1).…”

“…In this spectrum, the argon sent outa stripe observed in the scope of 200-900 nm and kT e determine by selecting two Ar-I spectral stripes. In a titration, the E, g and A for choices stripe is taken from the National Institute of Standards and Technology NIST "Atomic Spectra Datasheet" (6,7). The n e can determine using the near intensities of atomic and ionic spectral lines in "Boltzmann -Saha equation" (8).…”

Estudio de la temperatura electrónica del plasma de Argón tipo DC Glow Discharge con respecto a la presión y el voltaje de descarga

“…Las temperaturas se calcularon utilizando el modelo de estado coronal para condiciones estables, válido para plasmas de baja densidad, y con el cual se determina la temperatura utilizando dos líneas de emisión del plasma [6]. De acuerdo con este modelo, se tiene que: Las variables primadas corresponden a las cantidades asociadas a la segunda línea escogida [6]. Las longitudes de onda utilizadas se resumen en el cuadro 1, junto a las cantidades asociadas que se obtuvieron del National Institute of Standards and Technology (NIST) [7].…”

Electrical and spectral characteristics of a tube-to-plate helium plasma generated using dielectric barrier discharge in water

“…Under the condition of local thermodynamic equilibrium (LTE), the electron temperature Te (eV) is approximated by electron excitation temperature Texc (K) in reported work [30,31].…”