On the production of energetic electrons at the negative streamer head at moderate overvoltage

Dmitry Levko; Laxminarayan L. Raja

doi:10.1063/1.5008252

On the production of energetic electrons at the negative streamer head at moderate overvoltage

Dmitry Levko, Laxminarayan L. Raja

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Abstract

The generation of energetic electrons by the streamer with a negatively charged head is analyzed using a self-consistent two-dimensional Particle-in-Cell Monte Carlo collision model. The streamer is generated in the vicinity of the cathode at a moderate gap overvoltage and propagates toward the anode due to self-consistent electron/ion multiplication in front of the streamer head. We obtained the generation of energetic electrons with energy exceeding 1 keV at the streamer head when the electric field at the streamer head starts exceeding ∼200 kV/cm. It was found that a small number of energetic electrons can significantly accelerate the streamer propagation and even change the streamer propagation path.

Original language	English (US)
Pages (from-to)	124503
Journal	Physics of Plasmas
Volume	24
Issue number	12
DOIs	https://doi.org/10.1063/1.5008252
State	Published - Dec 2017
Externally published	Yes

Bibliographical note

KAUST Repository Item: Exported on 2021-04-06
Acknowledgements: This research was supported by Competitive Research Funding from King Abdullah University of Science and Technology (KAUST).
This publication acknowledges KAUST support, but has no KAUST affiliated authors.

ASJC Scopus subject areas

Condensed Matter Physics

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10.1063/1.5008252

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title = "On the production of energetic electrons at the negative streamer head at moderate overvoltage",

abstract = "The generation of energetic electrons by the streamer with a negatively charged head is analyzed using a self-consistent two-dimensional Particle-in-Cell Monte Carlo collision model. The streamer is generated in the vicinity of the cathode at a moderate gap overvoltage and propagates toward the anode due to self-consistent electron/ion multiplication in front of the streamer head. We obtained the generation of energetic electrons with energy exceeding 1 keV at the streamer head when the electric field at the streamer head starts exceeding ∼200 kV/cm. It was found that a small number of energetic electrons can significantly accelerate the streamer propagation and even change the streamer propagation path.",

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AU - Levko, Dmitry

AU - Raja, Laxminarayan L.

N1 - KAUST Repository Item: Exported on 2021-04-06 Acknowledgements: This research was supported by Competitive Research Funding from King Abdullah University of Science and Technology (KAUST). This publication acknowledges KAUST support, but has no KAUST affiliated authors.

PY - 2017/12

Y1 - 2017/12

N2 - The generation of energetic electrons by the streamer with a negatively charged head is analyzed using a self-consistent two-dimensional Particle-in-Cell Monte Carlo collision model. The streamer is generated in the vicinity of the cathode at a moderate gap overvoltage and propagates toward the anode due to self-consistent electron/ion multiplication in front of the streamer head. We obtained the generation of energetic electrons with energy exceeding 1 keV at the streamer head when the electric field at the streamer head starts exceeding ∼200 kV/cm. It was found that a small number of energetic electrons can significantly accelerate the streamer propagation and even change the streamer propagation path.

AB - The generation of energetic electrons by the streamer with a negatively charged head is analyzed using a self-consistent two-dimensional Particle-in-Cell Monte Carlo collision model. The streamer is generated in the vicinity of the cathode at a moderate gap overvoltage and propagates toward the anode due to self-consistent electron/ion multiplication in front of the streamer head. We obtained the generation of energetic electrons with energy exceeding 1 keV at the streamer head when the electric field at the streamer head starts exceeding ∼200 kV/cm. It was found that a small number of energetic electrons can significantly accelerate the streamer propagation and even change the streamer propagation path.

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JO - Physics of Plasmas

JF - Physics of Plasmas

IS - 12

ER -

On the production of energetic electrons at the negative streamer head at moderate overvoltage

Abstract

Bibliographical note

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