TY  - JOUR
AU  - Kuzmanović, Miroslav M.
AU  - Momčilović, Miloš
AU  - Ciganović, Jovan
AU  - Rankovic, D.
AU  - Savović, Jelena
AU  - Milovanović, Dubravka S.
AU  - Stoiljković, Milovan
AU  - Pavlović, Mirjana S.
AU  - Trtica, Milan
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7056
AB  - Optical emission spectroscopy was applied for investigation of copper plasma induced by a nanosecond transversely excited atmospheric CO2 laser, operating at 10.6 mu m. The effect of the background gas (air, Ar, He and N-2) and pressure (1-25 mbar) on plasma formation was examined. The plasma shielding effect was more pronounced for background gases with lower ionization potential than for He. The increase of He pressure from 1 to 25 mbar resulted in fivefold increase of Cu atomic line intensity.
T2  - Physica Scripta
T1  - Properties of plasma induced by pulsed CO2 laser on a copper target under different ambient conditions
VL  - T162
DO  - 10.1088/0031-8949/2014/T162/014011
ER  - 

@article{
author = "Kuzmanović, Miroslav M. and Momčilović, Miloš and Ciganović, Jovan and Rankovic, D. and Savović, Jelena and Milovanović, Dubravka S. and Stoiljković, Milovan and Pavlović, Mirjana S. and Trtica, Milan",
year = "2014",
abstract = "Optical emission spectroscopy was applied for investigation of copper plasma induced by a nanosecond transversely excited atmospheric CO2 laser, operating at 10.6 mu m. The effect of the background gas (air, Ar, He and N-2) and pressure (1-25 mbar) on plasma formation was examined. The plasma shielding effect was more pronounced for background gases with lower ionization potential than for He. The increase of He pressure from 1 to 25 mbar resulted in fivefold increase of Cu atomic line intensity.",
journal = "Physica Scripta",
title = "Properties of plasma induced by pulsed CO2 laser on a copper target under different ambient conditions",
volume = "T162",
doi = "10.1088/0031-8949/2014/T162/014011"
}

Kuzmanović, M. M., Momčilović, M., Ciganović, J., Rankovic, D., Savović, J., Milovanović, D. S., Stoiljković, M., Pavlović, M. S.,& Trtica, M.. (2014). Properties of plasma induced by pulsed CO2 laser on a copper target under different ambient conditions. in Physica Scripta, T162.
https://doi.org/10.1088/0031-8949/2014/T162/014011

Kuzmanović MM, Momčilović M, Ciganović J, Rankovic D, Savović J, Milovanović DS, Stoiljković M, Pavlović MS, Trtica M. Properties of plasma induced by pulsed CO2 laser on a copper target under different ambient conditions. in Physica Scripta. 2014;T162.
doi:10.1088/0031-8949/2014/T162/014011 .

Kuzmanović, Miroslav M., Momčilović, Miloš, Ciganović, Jovan, Rankovic, D., Savović, Jelena, Milovanović, Dubravka S., Stoiljković, Milovan, Pavlović, Mirjana S., Trtica, Milan, "Properties of plasma induced by pulsed CO2 laser on a copper target under different ambient conditions" in Physica Scripta, T162 (2014),
https://doi.org/10.1088/0031-8949/2014/T162/014011 . .

TY  - JOUR
AU  - Rankovic, D.
AU  - Kuzmanović, Miroslav M.
AU  - Savović, Jelena
AU  - Pavlović, Mirjana S.
AU  - Stoiljković, Milovan
AU  - Momčilović, Miloš
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3956
AB  - The effect of potassium addition on the radial distribution of temperature and electron number density in a U-shaped direct current (dc) argon plasma operating at different arc currents has been studied by optical emission spectroscopic techniques and the power interruption method. Spatially resolved electron number densities (n(e)) have been determined from measured radial profiles of Balmer-H(beta) spectral line. The obtained electron number densities have been used for thermodynamic temperature (T(LTE)) evaluation with the assumption that the arc plasma is in a state of local thermodynamic equilibrium. The excitation temperatures (T(exc)) have been determined from the absolute integral emissivity of the argon line at 430.01 nm. For heavy particle temperature (T(h)) evaluations we have used a power interruption method. The obtained results have shown that an addition of KCl decreases both electron number density and temperature of the arc column. The magnitude of such an influence on plasma parameters increases with an increase in the KCl concentration and decreases with an increase in the arc current.
T2  - Journal of Physics. D: Applied Physics
T1  - The effect of potassium addition on plasma parameters in argon dc plasma arc
VL  - 43
IS  - 33
DO  - 10.1088/0022-3727/43/33/335202
ER  - 

@article{
author = "Rankovic, D. and Kuzmanović, Miroslav M. and Savović, Jelena and Pavlović, Mirjana S. and Stoiljković, Milovan and Momčilović, Miloš",
year = "2010",
abstract = "The effect of potassium addition on the radial distribution of temperature and electron number density in a U-shaped direct current (dc) argon plasma operating at different arc currents has been studied by optical emission spectroscopic techniques and the power interruption method. Spatially resolved electron number densities (n(e)) have been determined from measured radial profiles of Balmer-H(beta) spectral line. The obtained electron number densities have been used for thermodynamic temperature (T(LTE)) evaluation with the assumption that the arc plasma is in a state of local thermodynamic equilibrium. The excitation temperatures (T(exc)) have been determined from the absolute integral emissivity of the argon line at 430.01 nm. For heavy particle temperature (T(h)) evaluations we have used a power interruption method. The obtained results have shown that an addition of KCl decreases both electron number density and temperature of the arc column. The magnitude of such an influence on plasma parameters increases with an increase in the KCl concentration and decreases with an increase in the arc current.",
journal = "Journal of Physics. D: Applied Physics",
title = "The effect of potassium addition on plasma parameters in argon dc plasma arc",
volume = "43",
number = "33",
doi = "10.1088/0022-3727/43/33/335202"
}

Rankovic, D., Kuzmanović, M. M., Savović, J., Pavlović, M. S., Stoiljković, M.,& Momčilović, M.. (2010). The effect of potassium addition on plasma parameters in argon dc plasma arc. in Journal of Physics. D: Applied Physics, 43(33).
https://doi.org/10.1088/0022-3727/43/33/335202

Rankovic D, Kuzmanović MM, Savović J, Pavlović MS, Stoiljković M, Momčilović M. The effect of potassium addition on plasma parameters in argon dc plasma arc. in Journal of Physics. D: Applied Physics. 2010;43(33).
doi:10.1088/0022-3727/43/33/335202 .

Rankovic, D., Kuzmanović, Miroslav M., Savović, Jelena, Pavlović, Mirjana S., Stoiljković, Milovan, Momčilović, Miloš, "The effect of potassium addition on plasma parameters in argon dc plasma arc" in Journal of Physics. D: Applied Physics, 43, no. 33 (2010),
https://doi.org/10.1088/0022-3727/43/33/335202 . .

TY  - JOUR
AU  - Kuzmanović, Miroslav M.
AU  - Savović, Jelena
AU  - Pavlović, Mirjana S.
AU  - Stoiljković, Milovan
AU  - Rankovic, D.
AU  - Momčilović, Miloš
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4158
AB  - A pulse-modulated direct-current argon arc burning at atmospheric pressure has been investigated by analyzing temporally and spatially resolved analyte emission responses in a millisecond time domain. The arc current was a rectangular pulse modulated between 9 and 3.5A with a modulation period of 250 ms and a low current interval of up to 50 ms. Both positive and negative step modulation in current strongly affected the analyte emission. Delayed responses of representative analytes with ionization energies ranging from 6.5 to 10 eV have been studied. Depending on the analyte ionization energy and the plasma zone observed, a sudden current change was in most cases followed by a line intensity increase. The magnitude of this increase is correlated with changes in the ionization-recombination balance, the extent of demixing and the gas dynamics processes invoked by a current modulation. For analytes with medium and low ionization energies a current drop is accompanied by a large increase in signal-to-background ratio, which opens up the possibility of the use of arc current modulation for sensitivity improvement.
T2  - Plasma Sources Science and Technology
T1  - Delayed responses of analyte emission in a pulse-modulated direct-current argon arc at atmospheric pressure
VL  - 19
IS  - 6
DO  - 10.1088/0963-0252/19/6/065019
ER  - 

@article{
author = "Kuzmanović, Miroslav M. and Savović, Jelena and Pavlović, Mirjana S. and Stoiljković, Milovan and Rankovic, D. and Momčilović, Miloš",
year = "2010",
abstract = "A pulse-modulated direct-current argon arc burning at atmospheric pressure has been investigated by analyzing temporally and spatially resolved analyte emission responses in a millisecond time domain. The arc current was a rectangular pulse modulated between 9 and 3.5A with a modulation period of 250 ms and a low current interval of up to 50 ms. Both positive and negative step modulation in current strongly affected the analyte emission. Delayed responses of representative analytes with ionization energies ranging from 6.5 to 10 eV have been studied. Depending on the analyte ionization energy and the plasma zone observed, a sudden current change was in most cases followed by a line intensity increase. The magnitude of this increase is correlated with changes in the ionization-recombination balance, the extent of demixing and the gas dynamics processes invoked by a current modulation. For analytes with medium and low ionization energies a current drop is accompanied by a large increase in signal-to-background ratio, which opens up the possibility of the use of arc current modulation for sensitivity improvement.",
journal = "Plasma Sources Science and Technology",
title = "Delayed responses of analyte emission in a pulse-modulated direct-current argon arc at atmospheric pressure",
volume = "19",
number = "6",
doi = "10.1088/0963-0252/19/6/065019"
}

Kuzmanović, M. M., Savović, J., Pavlović, M. S., Stoiljković, M., Rankovic, D.,& Momčilović, M.. (2010). Delayed responses of analyte emission in a pulse-modulated direct-current argon arc at atmospheric pressure. in Plasma Sources Science and Technology, 19(6).
https://doi.org/10.1088/0963-0252/19/6/065019

Kuzmanović MM, Savović J, Pavlović MS, Stoiljković M, Rankovic D, Momčilović M. Delayed responses of analyte emission in a pulse-modulated direct-current argon arc at atmospheric pressure. in Plasma Sources Science and Technology. 2010;19(6).
doi:10.1088/0963-0252/19/6/065019 .

Kuzmanović, Miroslav M., Savović, Jelena, Pavlović, Mirjana S., Stoiljković, Milovan, Rankovic, D., Momčilović, Miloš, "Delayed responses of analyte emission in a pulse-modulated direct-current argon arc at atmospheric pressure" in Plasma Sources Science and Technology, 19, no. 6 (2010),
https://doi.org/10.1088/0963-0252/19/6/065019 . .