Investigation of a nitrogen post-discharge of an atmospheric-pressure microwave plasma torch by optical emission spectroscopy

2017 ◽  
Vol 24 (3) ◽  
pp. 033512 ◽  
Author(s):  
Chuan-Jie Chen ◽  
Shou-Zhe Li
Keyword(s):  
Atmospheric Pressure ◽  
Emission Spectroscopy ◽  
Plasma Torch ◽  
Optical Emission Spectroscopy ◽  
Microwave Plasma ◽  
Optical Emission ◽  
Post Discharge ◽  
Microwave Plasma Torch

scholarly journals Characterization of an Atmospheric-Pressure Argon Plasma Generated by 915 MHz Microwaves Using Optical Emission Spectroscopy

2017 ◽  
Vol 2017 ◽  
pp. 1-6
Author(s):  
Robert Miotk ◽  
Bartosz Hrycak ◽  
Mariusz Jasiński ◽  
Jerzy Mizeraczyk
Keyword(s):  
Atmospheric Pressure ◽  
Emission Spectroscopy ◽  
Optical Emission Spectroscopy ◽  
Microwave Plasma ◽  
Argon Plasma ◽  
Optical Emission ◽  
Coaxial Line ◽  
Plasma Source ◽  
Stark Broadening ◽  
Concentration Of Electrons

The paper presents the investigations of an atmospheric-pressure argon plasma generated at 915 MHz microwaves using the optical emission spectroscopy (OES). The 915 MHz microwave plasma was inducted and sustained in a waveguide-supplied coaxial-line-based nozzleless microwave plasma source. The aim of presented investigations was to estimate parameters of the generated plasma, that is, excitation temperature of electrons Texc, temperature of plasma gas Tg, and concentration of electrons ne. Assuming that excited levels of argon atoms are in local thermodynamic equilibrium, Boltzmann method allowed in determining the Texc temperature in the range of 8100–11000 K. The temperature of plasma gas Tg was estimated by comparing the simulated spectra of the OH radical to the measured one in LIFBASE program. The obtained Tg temperature ranged in 1200–2800 K. Using a method based on Stark broadening of the Hβ line, the concentration of electrons ne was determined in the range from 1.4 × 1015 to 1.7 × 1015 cm−3, depending on the power absorbed by the microwave plasma.

Parametric evaluation of ambient desorption optical emission spectroscopy utilizing a liquid sampling-atmospheric pressure glow discharge microplasma

2017 ◽  
Vol 32 (5) ◽  
pp. 931-941 ◽  
Author(s):  
Htoo W. Paing ◽  
R. Kenneth Marcus
Keyword(s):  
Glow Discharge ◽  
Atmospheric Pressure ◽  
Emission Spectroscopy ◽  
Optical Emission Spectroscopy ◽  
Optical Emission ◽  
Atmospheric Pressure Glow Discharge ◽  
Operational Parameters ◽  
Pressure Glow Discharge ◽  
Liquid Sampling

The operational parameters of the AD-LS-APGD-OES microplasma have been evaluated in terms of understanding their roles in analyte response.

Study of graphene layer growth on dielectric substrate in microwave plasma torch at atmospheric pressure

2020 ◽  
Vol 105 ◽  
pp. 107798 ◽  
Author(s):  
Ondřej Jašek ◽  
Jozef Toman ◽  
Jana Jurmanová ◽  
Miroslav Šnírer ◽  
Vít Kudrle ◽  
...  
Keyword(s):  
Atmospheric Pressure ◽  
Plasma Torch ◽  
Graphene Layer ◽  
Microwave Plasma ◽  
Dielectric Substrate ◽  
Layer Growth ◽  
Microwave Plasma Torch
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