Spectroscopic Characterization of a Radio-Frequency Argon Plasma Jet Discharge in Ambient Air
نویسندگان
چکیده
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . This study includes a detailed experimental investigation of the spatial and temporal spectroscopic emission of an argon plasma jet discharge. The study is carried out in ambient air and quenching by inflowing air species is considered. The optical emission spectroscopy of neutral atomic spectral lines and molecular bands, over a range of plasma process parameters, is investigated. Wavelength-resolved argon optical emission profiles are used to monitor the electron energy distribution function and the density of argon metastable atoms. The experimental data indicates that the argon flow rate, in a confined open-air plasma discharge, limits the impact of molecular oxygen in the creation of oxygen radicals. The absolute calibrated emission spectra facilitate the possibility of standardization of the so-called plasma dose. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Subject Index H04, J29
منابع مشابه
Measurement of hydroxyl radicals in plasma pencil by laser induced fluorescence
Laser induced fluorescence was used for measurement of concentration of hydroxyl (OH) radicals in the plasma pencil, which is a radiofrequency plasma jet operated in argon at atmospheric pressure. The problematic of the rotational energy transfer, spectral overlap of the laser line and hydroxyl absorption line and saturation effects were treated. The method was calibrated by Rayleigh scattering...
متن کاملHybrid model of atmospheric pressure Ar/O2/TiCl4 radio-frequency capacitive discharge for TiO2 deposition
Articles you may be interested in OH radicals distribution in an Ar-H2O atmospheric plasma jet Influence of ambient air on the flowing afterglow of an atmospheric pressure Ar/O2 radiofrequency plasma Investigating the role of hydrogen in silicon deposition using an energy-resolved mass spectrometer and a Langmuir probe in an Ar/H2 radio frequency magnetron discharge Hydrogenated-amorphous carbo...
متن کاملAtmospheric Pressure Single Electrode Argon Plasma Jet for Biomedical Applications
Atmospheric pressure single electrode argon /oxygen plasma jet has been generated between a high-voltage electrode and the surrounding room air for treating thermally sensitive materials is reported. The discharge has been characterized by electrical and optical emission spectroscopic technique. The microplasma jet device operated by an electrical power less than 10 W exhibited a long plasma je...
متن کاملCharacterization of argon direct-current glow discharge with a longitudinal electric field applied at ambient air
A direct-current-driven plasma jet is developed by applying a longitudinal electric field on the flowing argon at ambient air. This plasma shows a torch shape with its cross-section increased from the anode to the cathode. Comparison with its counterparts indicates that the gas flow plays a key role in variation of the plasma structure and contributes much to enlarging the plasma volume. It is ...
متن کاملSpectroscopic characterization of rovibrational temperatures in atmospheric pressure He/CH4 plasmas
Atmospheric pressure of helium He and methane CH4 mixture discharge characteristics are investigated using emission spectroscopic methods. Plasmas are produced in a radio frequency capacitively coupled device at atmospheric pressure in the ambient air. Without the CH4 gas introduced in the plasma, the emission spectrum exhibits typical helium discharge characteristics showing helium atomic line...
متن کامل