Framework of unified nonequilibrium plasma model and collisional-radiative model for characterisation of microdischarges in metal vapours of Cd and Zn

Baeva, Margarita; Jovanović, Aleksandar P; Methling, Ralf; Bratek, Dominik; Hilbert, Michael; Uber, Carsten; Uhrlandt, Dirk

doi:https://doi.org/10.1088/1361-6595/ae746d

Zugriffsnummer	56124
Dokumenttyp	Zeitschriftenartikel
Peer Review	mit Peer Review
Sprache	Englisch
Titel	Framework of unified nonequilibrium plasma model and collisional-radiative model for characterisation of microdischarges in metal vapours of Cd and Zn
Autor(in); Institution	Baeva, Margarita; Leibniz Institute for Plasma Science and Technology eV, Greifswald, GERMANY Jovanović, Aleksandar P; Leibniz Institute for Plasma Science and Technology eV, Greifswald, GERMANY Methling, Ralf; Leibniz Institute for Plasma Science and Technology eV, Greifswald, GERMANY Bratek, Dominik; 3.6, Explosionsgeschützte Sensorik und Messtechnik, PTB-Braunschweig Hilbert, Michael; 3.6, Explosionsgeschützte Sensorik und Messtechnik, PTB-Braunschweig Uber, Carsten; 3.6, Explosionsgeschützte Sensorik und Messtechnik, PTB-Braunschweig Uhrlandt, Dirk; Leibniz Institute for Plasma Science and Technology eV, Greifswald, GERMANY
Quelle/Jahr	Plasma Sources Science and Technology: 35 (2026), 6, 1 - 17
Artikelnummer	065003
ISSN	0963-0252 (print) ; 1361-6595 (online)
DOI	https://doi.org/10.1088/1361-6595/ae746d
URL	https://iopscience.iop.org/article/10.1088/1361-6595/ae746d
Verlag	Bristol: IOP Publishing
Freie Schlagworte	electric discharges ; contact-opening ; microdischarges
Zusammenfassung	Direct current microdischarges in metal vapours of cadmium and zinc occurring during contact separation in a test apparatus related to explosion protection were investigated and compared in detail. Their characterisation was done in a framework that combined a unified nonequilibrium plasma model and a collisional-radiative model. The plasma model provided the basic plasma parameters (number densities of ground state neutral and singly charged species and their energies, electric field, discharge voltage). Number densities of excited atomic states were obtained on a second stage employing a collisional-radiative model and the already known plasma parameters. This modelling framework allowed one to obtain spatially and temporally resolved plasma parameters and the population of the excited atomic states in the entire discharge gap during the separation of the electric contacts. The modelling work was supported by electrical measurements, high-speed imaging and optical emission spectroscopy. The experimental findings enabled the calibration of the plasma model with respect to the discharge voltage and a qualitative and to some extent quantitative comparison of computed and measured spectral intensities.

Kostenfreier Zugang	Open Access Hybrid
Rechteinformation	CC BY 4.0 ; Creative Commons Attribution 4.0 License

Zitierung

Baeva, M., Jovanović, A. P., Methling, R., Bratek, D., Hilbert, M., Uber, C., & Uhrlandt, D. (2026). Framework of unified nonequilibrium plasma model and collisional-radiative model for characterisation of microdischarges in metal vapours of Cd and Zn. Plasma Sources Science and Technology, 35(6), 1–17. https://doi.org/10.1088/1361-6595/ae746d

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