scholarly journals Effect of gas flow rate on plasma temperature and electron density of atmospheric argon plasma jet

2018 ◽  
Vol 15 (35) ◽  
pp. 117-124
Author(s):  
Kadhim A. Aadim
Keyword(s):  
Electron Temperature ◽  
Electron Density ◽  
Flow Rate ◽  
Gas Flow ◽  
Argon Plasma ◽  
Plasma Jet ◽  
Gas Flow Rate ◽  
Boltzmann Plot ◽  
Atmospheric Argon ◽  
Argon Plasma Jet

In this study, method for experimentally determining the electron density (ne) and the electron temperature (Te) in the atmospheric Argon plasma jet is used; it is based on optical emission spectroscopy (OES). Boltzmann plot method used to calculate these parameters measured for different values of gas flow rate. The results show that the electron temperature decreasing with the increase of gas flow rate also indicates an increasing in the electron density of plasma jet with increasing of gas flow rate.

Electron-temperature and electron-density profiles in an atmospheric-pressure argon plasma jet

1994 ◽  
Vol 50 (1) ◽  
pp. 519-525 ◽  
Author(s):  
S. C. Snyder ◽  
L. D. Reynolds ◽  
J. R. Fincke ◽  
G. D. Lassahn ◽  
J. D. Grandy ◽  
...  
Keyword(s):  
Electron Temperature ◽  
Electron Density ◽  
Atmospheric Pressure ◽  
Argon Plasma ◽  
Plasma Jet ◽  
Density Profiles ◽  
Electron Density Profiles ◽  
Argon Plasma Jet

Measurement of transient electron density of a pulsed microwave argon plasma jet via microwave Rayleigh scattering

2020 ◽  
Vol 128 (12) ◽  
pp. 123301
Author(s):  
Ming Zhang ◽  
Zhaoquan Chen ◽  
Jinfang Wu ◽  
Huang Zhang ◽  
Sanyang Zhang ◽  
...  
Keyword(s):  
Electron Density ◽  
Rayleigh Scattering ◽  
Argon Plasma ◽  
Plasma Jet ◽  
Argon Plasma Jet

scholarly journals Impact of electrical grounding conditions on plasma–liquid interactions using Thomson scattering on a pulsed argon jet

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Elmar Slikboer ◽  
James Walsh
Keyword(s):  
Electron Density ◽  
Applied Voltage ◽  
Voltage Pulse ◽  
Argon Plasma ◽  
Plasma Jet ◽  
Thomson Scattering ◽  
Electron Dynamics ◽  
Electron Density And Temperature ◽  
Argon Plasma Jet ◽  
Applied Voltage Pulse

AbstractThe interaction between an argon plasma jet excited using microsecond duration voltage pulses and a liquid target was examined using Thomson scattering to quantify the temporal evolution of the electron density and temperature. The electrical resistance between a liquid target and the electrical ground was varied from 1 to $$680\, \text {k}\Omega $$ 680 k Ω to mimic different conductivity liquids while the influence of the varying electrical properties on the electron dynamics within the plasma were examined. It was demonstrated that the interaction between the plasma jet and a liquid target grounded via a high resistance resulted in typical dielectric barrier discharge behaviour, with two discharge events per applied voltage pulse. Under such conditions, the electron density and temperature reached a peak of $$1\cdot 10^{15}\, \text {cm}^{-3}$$ 1 · 10 15 cm - 3 and 3.4 eV, respectively; with both rapidly decaying over several hundreds of nanoseconds. For liquid targets grounded via a low resistance, the jet behaviour transitioned to a DC-like discharge, with a single breakdown event being observed and sustained throughout the duration of each applied voltage pulse. Under such conditions, electron densities of $$2{-}3 \cdot 10^{15}\, \text {cm}^{-3}$$ 2 - 3 · 10 15 cm - 3 were detected for several microseconds. The results demonstrate that the electron dynamics in a pulsed argon plasma jet are extremely sensitive to the electrical characteristics of the target, which in the case of water, can evolve during exposure to the plasma.

Effects of Gas Flow Rate on the Discharge Characteristics of a DC Excited Plasma Jet

2015 ◽  
Vol 17 (9) ◽  
pp. 738-742 ◽  
Author(s):  
Xuechen Li ◽  
Pengying Jia ◽  
Cong Di ◽  
Wenting Bao ◽  
Chunyan Zhang
Keyword(s):  
Flow Rate ◽  
Gas Flow ◽  
Plasma Jet ◽  
Gas Flow Rate ◽  
Discharge Characteristics

Characterization of Argon Plasma by Use of Optical Emission Spectroscopy and Langmuir Probe Measurements

2003 ◽  
Vol 17 (14) ◽  
pp. 2749-2759 ◽  
Author(s):  
Abdul Qayyum ◽  
M. Ikram ◽  
M. Zakaullah ◽  
A. Waheed ◽  
G. Murtaza ◽  
...  
Keyword(s):  
Electron Temperature ◽  
Flow Rate ◽  
Langmuir Probe ◽  
Gas Flow ◽  
Optical Emission ◽  
Filling Pressure ◽  
Emission Lines ◽  
Gas Flow Rate ◽  
Langmuir Probe Measurements ◽  
Probe Measurements

Spectroscopic and Langmuir probe measurements are presented to characterize the argon glow discharge plasma generated by a cost-effective 50 Hz AC power source. Optical emission spectra (400–700 nm) are recorded for different gas flow rates and filling pressures at constant power level. The plasma parameters (electron temperature and density) are deduced from the relative intensities of Ar-I and Ar-II lines. The variation in the intensity ratio of the selected emission lines, electron temperature and density is studied as a function of gas flow rate and filling pressure. Slight increase in the intensity ratio I2(426.62 nm )/I1(404.44 nm ) of the emission lines is observed whereas the electron temperature and density are found to decrease with increase in gas flow rate and filling pressure.

On the plasma chemistry of a cold atmospheric argon plasma jet with shielding gas device

2015 ◽  
Vol 25 (1) ◽  
pp. 015005 ◽  
Author(s):  
Ansgar Schmidt-Bleker ◽  
Jörn Winter ◽  
André Bösel ◽  
Stephan Reuter ◽  
Klaus-Dieter Weltmann
Keyword(s):  
Plasma Chemistry ◽  
Argon Plasma ◽  
Plasma Jet ◽  
Shielding Gas ◽  
Atmospheric Argon ◽  
Argon Plasma Jet

Nonthermal Atmospheric Argon Plasma Jet Effects on Escherichia coli Biomacromolecules

2013 ◽  
Vol 171 (7) ◽  
pp. 1617-1629 ◽  
Author(s):  
Abasalt Hosseinzadeh Colagar ◽  
Hamed Memariani ◽  
Farshad Sohbatzadeh ◽  
Azadeh Valinataj Omran
Keyword(s):  
Escherichia Coli ◽  
Argon Plasma ◽  
Plasma Jet ◽  
Atmospheric Argon ◽  
Argon Plasma Jet
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