Correlation between electric field, current and photon emission
in subsequent barrier corona microdischarges

J 2019

Correlation between electric field, current and photon emission in subsequent barrier corona microdischarges

JAHANBAKHSH, Sina; Tomáš HODER a Ronny BRANDENBURG

Základní údaje

Originální název

Correlation between electric field, current and photon emission in subsequent barrier corona microdischarges

Autoři

JAHANBAKHSH, Sina; Tomáš HODER a Ronny BRANDENBURG

Vydání

Journal of Applied Physics, MELVILLE, AMER INST PHYSICS, 2019, 0021-8979

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10305 Fluids and plasma physics

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 2.286

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14310/19:00112089

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

barrier corona discharge; air; electric field;

Štítky

14312030, rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 29. 2. 2024 14:08, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

We investigate single microdischarges (MDs) in a sinusoidally operated barrier corona discharge in air. For the voltage amplitude being applied, two subsequent MDs appear in the anodic pin half-cycle. The developments of these subsequent MDs were studied and presented in detail in a previous contribution [Jahanbakhsh et al., Plasma Sources Sci. Technol. 27, 115011 (2018)]. In the present study, the reduced electric field strength (E/n) values of the MDs are determined. In addition, the current pulses are synchronized, with a subnanosecond time resolution, to the spatiotemporally resolved light emission and E/n development of the MDs. It is proposed that the current pulse derivative maximum corresponds to the streamer head arrival on the cathode surface. Therefore, the derivatives of the current pulses are used to synchronize the light emission and current measurements. Based on this synchronization, spatiotemporally resolved light emissions at different positions are compared to the averaged current pulses. Considering the observed correlations, it is proposed that after the arrival of the streamer head on the dielectric (cathode) surface and bulk plasma formation, the ionization processes near the dielectric surface are the dominant source of electron current production. The determination of the E/n is based on the analysis of the time-correlated single photon counting results for the molecular states of the first negative and the second positive systems of nitrogen. The E/n increases during the streamer propagation in the gap, reaching its maximum value at the impact of the streamer on the cathode. The E/n values for the second group MDs are lower only in the vicinity of the dielectric surface, which can be attributed to the positive residual surface charges from the first group MDs. Published under license by AIP Publishing.

Návaznosti

90097, velká výzkumná infrastruktura

Název: CEPLANT

Citovat

JAHANBAKHSH, Sina; Tomáš HODER a Ronny BRANDENBURG. Correlation between electric field, current and photon emission in subsequent barrier corona microdischarges. Journal of Applied Physics. MELVILLE: AMER INST PHYSICS, 2019, roč. 126, č. 19, s. 1-13. ISSN 0021-8979. Dostupné z: https://doi.org/10.1063/1.5124363.

@article{1599698,
   author = {Jahanbakhsh, Sina and Hoder, Tomáš and Brandenburg, Ronny},
   article_location = {MELVILLE},
   article_number = {19},
   doi = {https://doi.org/10.1063/1.5124363},
   keywords = {barrier corona discharge; air; electric field;},
   language = {eng},
   issn = {0021-8979},
   journal = {Journal of Applied Physics},
   title = {Correlation between electric field, current and photon emission in subsequent barrier corona microdischarges},
   url = {https://aip.scitation.org/doi/10.1063/1.5124363},
   volume = {126},
   year = {2019}
}

TY  - JOUR
ID  - 1599698
AU  - Jahanbakhsh, Sina - Hoder, Tomáš - Brandenburg, Ronny
PY  - 2019
TI  - Correlation between electric field, current and photon emission in subsequent barrier corona microdischarges
JF  - Journal of Applied Physics
VL  - 126
IS  - 19
SP  - 1-13
EP  - 1-13
PB  - AMER INST PHYSICS
SN  - 00218979
KW  - barrier corona discharge
KW  - air
KW  - electric field;
UR  - https://aip.scitation.org/doi/10.1063/1.5124363
L2  - https://aip.scitation.org/doi/10.1063/1.5124363
N2  - We investigate single microdischarges (MDs) in a sinusoidally operated barrier corona discharge in air. For the voltage amplitude being applied, two subsequent MDs appear in the anodic pin half-cycle. The developments of these subsequent MDs were studied and presented in detail in a previous contribution [Jahanbakhsh et al., Plasma Sources Sci. Technol. 27, 115011 (2018)]. In the present study, the reduced electric field strength (E/n) values of the MDs are determined. In addition, the current pulses are synchronized, with a subnanosecond time resolution, to the spatiotemporally resolved light emission and E/n development of the MDs. It is proposed that the current pulse derivative maximum corresponds to the streamer head arrival on the cathode surface. Therefore, the derivatives of the current pulses are used to synchronize the light emission and current measurements. Based on this synchronization, spatiotemporally resolved light emissions at different positions are compared to the averaged current pulses. Considering the observed correlations, it is proposed that after the arrival of the streamer head on the dielectric (cathode) surface and bulk plasma formation, the ionization processes near the dielectric surface are the dominant source of electron current production. The determination of the E/n is based on the analysis of the time-correlated single photon counting results for the molecular states of the first negative and the second positive systems of nitrogen. The E/n increases during the streamer propagation in the gap, reaching its maximum value at the impact of the streamer on the cathode. The E/n values for the second group MDs are lower only in the vicinity of the dielectric surface, which can be attributed to the positive residual surface charges from the first group MDs. Published under license by AIP Publishing.
ER  -

JAHANBAKHSH, Sina; Tomáš HODER a Ronny BRANDENBURG. Correlation between electric field, current and photon emission in subsequent barrier corona microdischarges. \textit{Journal of Applied Physics}. MELVILLE: AMER INST PHYSICS, 2019, roč.~126, č.~19, s.~1-13. ISSN~0021-8979. Dostupné z: https://doi.org/10.1063/1.5124363.

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