Konjević, N.

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  • Konjević, N. (4)
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Author's Bibliography

Complex UV Ne II line shapes in the cathode sheath of an abnormal glow discharge

Spasojević, Dj; Ivanović, Nikola; Nedić, N., V; Sisović, N.M.; Konjević, N.

(IOP Publishing Ltd, Bristol, 2020)

TY  - JOUR
AU  - Spasojević, Dj
AU  - Ivanović, Nikola
AU  - Nedić, N., V
AU  - Sisović, N.M.
AU  - Konjević, N.
PY  - 2020
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5259
AB  - We report results of an experimental and theoretical study of complex UV line shapes of Ne II 369.421 nm, Ne II 371.308 nm and Ne II 372.711 nm lines in the cathode sheath (CS) region of an abnormal glow discharge in pure neon. The experimental profiles were studied by means of the optical emission spectroscopy (OES) in conjunction with an iterative CS kinetic model. It is shown that our theoretical model describes the experimental line shapes and that, with the aid of the measured Stark shifts of atomic neon lines, it can be used for the determination of the most important CS parameters (e.g. the thickness of the CS region, distribution of electric field, and the gas temperature). We draw attention to the possibility of determining the electric field strength in CS from the width of the pedestal of the complex line profiles.
PB  - IOP Publishing Ltd, Bristol
T2  - Plasma Sources Science & Technology
T1  - Complex UV Ne II line shapes in the cathode sheath of an abnormal glow discharge
IS  - 8
VL  - 29
DO  - 10.1088/1361-6595/aba48a
ER  - 
@article{
author = "Spasojević, Dj and Ivanović, Nikola and Nedić, N., V and Sisović, N.M. and Konjević, N.",
year = "2020",
abstract = "We report results of an experimental and theoretical study of complex UV line shapes of Ne II 369.421 nm, Ne II 371.308 nm and Ne II 372.711 nm lines in the cathode sheath (CS) region of an abnormal glow discharge in pure neon. The experimental profiles were studied by means of the optical emission spectroscopy (OES) in conjunction with an iterative CS kinetic model. It is shown that our theoretical model describes the experimental line shapes and that, with the aid of the measured Stark shifts of atomic neon lines, it can be used for the determination of the most important CS parameters (e.g. the thickness of the CS region, distribution of electric field, and the gas temperature). We draw attention to the possibility of determining the electric field strength in CS from the width of the pedestal of the complex line profiles.",
publisher = "IOP Publishing Ltd, Bristol",
journal = "Plasma Sources Science & Technology",
title = "Complex UV Ne II line shapes in the cathode sheath of an abnormal glow discharge",
number = "8",
volume = "29",
doi = "10.1088/1361-6595/aba48a"
}
Spasojević, D., Ivanović, N., Nedić, N., V., Sisović, N.M.,& Konjević, N.. (2020). Complex UV Ne II line shapes in the cathode sheath of an abnormal glow discharge. in Plasma Sources Science & Technology
IOP Publishing Ltd, Bristol., 29(8).
https://doi.org/10.1088/1361-6595/aba48a
Spasojević D, Ivanović N, Nedić NV, Sisović N, Konjević N. Complex UV Ne II line shapes in the cathode sheath of an abnormal glow discharge. in Plasma Sources Science & Technology. 2020;29(8).
doi:10.1088/1361-6595/aba48a .
Spasojević, Dj, Ivanović, Nikola, Nedić, N., V, Sisović, N.M., Konjević, N., "Complex UV Ne II line shapes in the cathode sheath of an abnormal glow discharge" in Plasma Sources Science & Technology, 29, no. 8 (2020),
https://doi.org/10.1088/1361-6595/aba48a . .
6
1
6

DEVELOPMENT OF SPECTROSCOPIC METHOD FOR MEASUREMENT OF ELECTRIC FIELD IN THE CATHODE SHEATH REGION OF AN ABNORMAL GLOW NEON DISCHARGE

Ivanović, Nikola V.; Šišović, N. M.; Spasojević, Dj.; Konjević, N.

(Vinča Institute of Nuclear Sciences, 2018)

TY  - CONF
AU  - Ivanović, Nikola V.
AU  - Šišović, N. M.
AU  - Spasojević, Dj.
AU  - Konjević, N.
PY  - 2018
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/6925
AB  - We have experimentally and theoretically studied the DC Stark shifts
of several visible neon atomic lines Ne I (503.135nm; 507.421 nm; 511.367 nm;
515.196 nm; 515.443 nm; 520.390 nm; and 520.886 nm) recorded in the cathode
sheath region of an abnormal glow discharge operated in neon with a small
admixture of hydrogen. The electric field (up to 13.4 kV cm−1) is measured from
the π-polarized profile of the hydrogen Balmer line Hα using Stark polarization
spectroscopy technique. Within the low electric field range, the Ne I lines exhibit
a quadratic Stark effect. The values of the coefficients, correlating Stark shift and
electric field strength, were determined, which enable their future use for electric
field strength measurements in discharges with neon.
PB  - Vinča Institute of Nuclear Sciences
C3  - 29th Summer School and International Symposium on the Physics of Ionized Gases (SPIG2018)
T1  - DEVELOPMENT OF SPECTROSCOPIC METHOD FOR MEASUREMENT OF ELECTRIC FIELD IN THE CATHODE SHEATH REGION OF AN ABNORMAL GLOW NEON DISCHARGE
SP  - 194
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_6925
ER  - 
@conference{
author = "Ivanović, Nikola V. and Šišović, N. M. and Spasojević, Dj. and Konjević, N.",
year = "2018",
abstract = "We have experimentally and theoretically studied the DC Stark shifts
of several visible neon atomic lines Ne I (503.135nm; 507.421 nm; 511.367 nm;
515.196 nm; 515.443 nm; 520.390 nm; and 520.886 nm) recorded in the cathode
sheath region of an abnormal glow discharge operated in neon with a small
admixture of hydrogen. The electric field (up to 13.4 kV cm−1) is measured from
the π-polarized profile of the hydrogen Balmer line Hα using Stark polarization
spectroscopy technique. Within the low electric field range, the Ne I lines exhibit
a quadratic Stark effect. The values of the coefficients, correlating Stark shift and
electric field strength, were determined, which enable their future use for electric
field strength measurements in discharges with neon.",
publisher = "Vinča Institute of Nuclear Sciences",
journal = "29th Summer School and International Symposium on the Physics of Ionized Gases (SPIG2018)",
title = "DEVELOPMENT OF SPECTROSCOPIC METHOD FOR MEASUREMENT OF ELECTRIC FIELD IN THE CATHODE SHEATH REGION OF AN ABNORMAL GLOW NEON DISCHARGE",
pages = "194",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_6925"
}
Ivanović, N. V., Šišović, N. M., Spasojević, Dj.,& Konjević, N.. (2018). DEVELOPMENT OF SPECTROSCOPIC METHOD FOR MEASUREMENT OF ELECTRIC FIELD IN THE CATHODE SHEATH REGION OF AN ABNORMAL GLOW NEON DISCHARGE. in 29th Summer School and International Symposium on the Physics of Ionized Gases (SPIG2018)
Vinča Institute of Nuclear Sciences., 194.
https://hdl.handle.net/21.15107/rcub_agrospace_6925
Ivanović NV, Šišović NM, Spasojević D, Konjević N. DEVELOPMENT OF SPECTROSCOPIC METHOD FOR MEASUREMENT OF ELECTRIC FIELD IN THE CATHODE SHEATH REGION OF AN ABNORMAL GLOW NEON DISCHARGE. in 29th Summer School and International Symposium on the Physics of Ionized Gases (SPIG2018). 2018;:194.
https://hdl.handle.net/21.15107/rcub_agrospace_6925 .
Ivanović, Nikola V., Šišović, N. M., Spasojević, Dj., Konjević, N., "DEVELOPMENT OF SPECTROSCOPIC METHOD FOR MEASUREMENT OF ELECTRIC FIELD IN THE CATHODE SHEATH REGION OF AN ABNORMAL GLOW NEON DISCHARGE" in 29th Summer School and International Symposium on the Physics of Ionized Gases (SPIG2018) (2018):194,
https://hdl.handle.net/21.15107/rcub_agrospace_6925 .

Measurement of the DC Stark shift for visible Ne I lines and electric field distribution in the cathode sheath of an abnormal glow discharge

Ivanović, N. V.; Šišović, N. M.; Spasojević, Dj.; Konjević, N.

(IOP Publishing, 2017)

TY  - JOUR
AU  - Ivanović, N. V.
AU  - Šišović, N. M.
AU  - Spasojević, Dj.
AU  - Konjević, N.
PY  - 2017
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/6918
AB  - We present the results of an experimental study of the DC Stark shift for seven visible NeI
lines in the plane cathode sheath region of an abnormal glow discharge operated in neon with
a small admixture of hydrogen. The electric field (up to 13.4 kV cm−1) in the cathode sheath
region is measured from the π-polarized profile of the H alpha line of hydrogen using the
Stark polarization spectroscopy technique. Within the realized range of the electric field, the
NeI lines exhibit a quadratic Stark effect. The values of coefficients, correlating Stark shift and
electric field strength, were determined, enabling their future use for unknown electric field
strength measurements. Among the studied lines, so far only the Stark effect analysis of the
NeI 511.367 nm line has been reported, in which case our results are in good agreement with
the best fit formula proposed by Jäger and Windholz (1984 Phys. Scr. 29 344) for one out of
three Stark components detected under our experimental conditions.
PB  - IOP Publishing
T2  - Journal of Physics D: Applied Physics
T1  - Measurement of the DC Stark shift for visible Ne I lines and electric field distribution in the cathode sheath of an abnormal glow discharge
IS  - 50
DO  - 10.1088/1361-6463/aa5c1f
ER  - 
@article{
author = "Ivanović, N. V. and Šišović, N. M. and Spasojević, Dj. and Konjević, N.",
year = "2017",
abstract = "We present the results of an experimental study of the DC Stark shift for seven visible NeI
lines in the plane cathode sheath region of an abnormal glow discharge operated in neon with
a small admixture of hydrogen. The electric field (up to 13.4 kV cm−1) in the cathode sheath
region is measured from the π-polarized profile of the H alpha line of hydrogen using the
Stark polarization spectroscopy technique. Within the realized range of the electric field, the
NeI lines exhibit a quadratic Stark effect. The values of coefficients, correlating Stark shift and
electric field strength, were determined, enabling their future use for unknown electric field
strength measurements. Among the studied lines, so far only the Stark effect analysis of the
NeI 511.367 nm line has been reported, in which case our results are in good agreement with
the best fit formula proposed by Jäger and Windholz (1984 Phys. Scr. 29 344) for one out of
three Stark components detected under our experimental conditions.",
publisher = "IOP Publishing",
journal = "Journal of Physics D: Applied Physics",
title = "Measurement of the DC Stark shift for visible Ne I lines and electric field distribution in the cathode sheath of an abnormal glow discharge",
number = "50",
doi = "10.1088/1361-6463/aa5c1f"
}
Ivanović, N. V., Šišović, N. M., Spasojević, Dj.,& Konjević, N.. (2017). Measurement of the DC Stark shift for visible Ne I lines and electric field distribution in the cathode sheath of an abnormal glow discharge. in Journal of Physics D: Applied Physics
IOP Publishing.(50).
https://doi.org/10.1088/1361-6463/aa5c1f
Ivanović NV, Šišović NM, Spasojević D, Konjević N. Measurement of the DC Stark shift for visible Ne I lines and electric field distribution in the cathode sheath of an abnormal glow discharge. in Journal of Physics D: Applied Physics. 2017;(50).
doi:10.1088/1361-6463/aa5c1f .
Ivanović, N. V., Šišović, N. M., Spasojević, Dj., Konjević, N., "Measurement of the DC Stark shift for visible Ne I lines and electric field distribution in the cathode sheath of an abnormal glow discharge" in Journal of Physics D: Applied Physics, no. 50 (2017),
https://doi.org/10.1088/1361-6463/aa5c1f . .
16

Ar I and Ne I spectral line shapes for an abnormal glow discharge diagnostics

Majstorović, G. Lj.; Ivanović, N. V.; Šišović, N. M.; Djurović, S.; Konjević, N.

(IOP Publishing, 2013)

TY  - JOUR
AU  - Majstorović, G. Lj.
AU  - Ivanović, N. V.
AU  - Šišović, N. M.
AU  - Djurović, S.
AU  - Konjević, N.
PY  - 2013
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/6916
AB  - We report the results of an Ar I and Ne I line shape study in an abnormal glow discharge
operating in argon and neon. The spectral lines were observed along the axis of a cylindrical
glow discharge parallel (side-on) and perpendicular (end-on) to the cathode surface. The
side-on spectra show spectral line shifting and sometimes simultaneous shifting and splitting
in the cathode fall region of the glow discharge. The results of the measured line shift with
available data for the dc Stark effect are used for measurement of electric field strength in the
cathode fall region of the glow discharge. Electron temperatures of 2860K and 4770K in the
negative glow region of argon and neon discharges, respectively, were determined from the
relative intensities of Ar I or Ne I lines using the Boltzmann plot technique. An electron
number density of ≈1020 m−3 (±25%) in the negative glow region of the argon discharge was
determined from the widths of two plasma-broadened Ar I lines using theoretical Stark
broadening data. The end-on recorded line profiles show 10–40% larger half-widths than the
side-on recorded line profiles from the negative glow. This effect is a result of the
superposition of line emission in the cathode fall region under the influence of the dc Stark
effect on the line profile from the negative glow.
PB  - IOP Publishing
T2  - Plasma Sources Science and Technology
T1  - Ar I and Ne I spectral line shapes for an abnormal glow discharge diagnostics
IS  - 22
DO  - 10.1088/0963-0252/22/4/045015
ER  - 
@article{
author = "Majstorović, G. Lj. and Ivanović, N. V. and Šišović, N. M. and Djurović, S. and Konjević, N.",
year = "2013",
abstract = "We report the results of an Ar I and Ne I line shape study in an abnormal glow discharge
operating in argon and neon. The spectral lines were observed along the axis of a cylindrical
glow discharge parallel (side-on) and perpendicular (end-on) to the cathode surface. The
side-on spectra show spectral line shifting and sometimes simultaneous shifting and splitting
in the cathode fall region of the glow discharge. The results of the measured line shift with
available data for the dc Stark effect are used for measurement of electric field strength in the
cathode fall region of the glow discharge. Electron temperatures of 2860K and 4770K in the
negative glow region of argon and neon discharges, respectively, were determined from the
relative intensities of Ar I or Ne I lines using the Boltzmann plot technique. An electron
number density of ≈1020 m−3 (±25%) in the negative glow region of the argon discharge was
determined from the widths of two plasma-broadened Ar I lines using theoretical Stark
broadening data. The end-on recorded line profiles show 10–40% larger half-widths than the
side-on recorded line profiles from the negative glow. This effect is a result of the
superposition of line emission in the cathode fall region under the influence of the dc Stark
effect on the line profile from the negative glow.",
publisher = "IOP Publishing",
journal = "Plasma Sources Science and Technology",
title = "Ar I and Ne I spectral line shapes for an abnormal glow discharge diagnostics",
number = "22",
doi = "10.1088/0963-0252/22/4/045015"
}
Majstorović, G. Lj., Ivanović, N. V., Šišović, N. M., Djurović, S.,& Konjević, N.. (2013). Ar I and Ne I spectral line shapes for an abnormal glow discharge diagnostics. in Plasma Sources Science and Technology
IOP Publishing.(22).
https://doi.org/10.1088/0963-0252/22/4/045015
Majstorović GL, Ivanović NV, Šišović NM, Djurović S, Konjević N. Ar I and Ne I spectral line shapes for an abnormal glow discharge diagnostics. in Plasma Sources Science and Technology. 2013;(22).
doi:10.1088/0963-0252/22/4/045015 .
Majstorović, G. Lj., Ivanović, N. V., Šišović, N. M., Djurović, S., Konjević, N., "Ar I and Ne I spectral line shapes for an abnormal glow discharge diagnostics" in Plasma Sources Science and Technology, no. 22 (2013),
https://doi.org/10.1088/0963-0252/22/4/045015 . .
23