Abstract
To gain a better understanding of the operation of atmospheric pressure air discharges, the formation of a runaway electron beam at an individual emission site on the cathode has been numerically simulated. The model provides a description of the dynamics of the fast electrons emitted into an air gap from the surface of the emission zone by solving numerically two-dimensional equations for the electrons. It is supposed that the electric field at the surface of the emission zone is enhanced, providing conditions for continuous acceleration of the emitted electrons. It is shown that the formation of a runaway electron beam in a highly overvolted discharge is largely associated with avalanche-type processes and that the number of electrons in the avalanche reaches 50% of the total number of runaway electrons.
| Original language | English |
|---|---|
| Article number | 123505 |
| Journal | Physics of Plasmas |
| Volume | 22 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - 1 Dec 2015 |
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ASJC Scopus subject areas
- Condensed Matter Physics
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Simulation of a runaway electron avalanche developing in an atmospheric pressure air discharge. / Oreshkin, E. V.; Barengolts, S. A.; Chaikovsky, S. A.; Oreshkin, V. I.
In: Physics of Plasmas, Vol. 22, No. 12, 123505, 01.12.2015.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Simulation of a runaway electron avalanche developing in an atmospheric pressure air discharge
AU - Oreshkin, E. V.
AU - Barengolts, S. A.
AU - Chaikovsky, S. A.
AU - Oreshkin, V. I.
PY - 2015/12/1
Y1 - 2015/12/1
N2 - To gain a better understanding of the operation of atmospheric pressure air discharges, the formation of a runaway electron beam at an individual emission site on the cathode has been numerically simulated. The model provides a description of the dynamics of the fast electrons emitted into an air gap from the surface of the emission zone by solving numerically two-dimensional equations for the electrons. It is supposed that the electric field at the surface of the emission zone is enhanced, providing conditions for continuous acceleration of the emitted electrons. It is shown that the formation of a runaway electron beam in a highly overvolted discharge is largely associated with avalanche-type processes and that the number of electrons in the avalanche reaches 50% of the total number of runaway electrons.
AB - To gain a better understanding of the operation of atmospheric pressure air discharges, the formation of a runaway electron beam at an individual emission site on the cathode has been numerically simulated. The model provides a description of the dynamics of the fast electrons emitted into an air gap from the surface of the emission zone by solving numerically two-dimensional equations for the electrons. It is supposed that the electric field at the surface of the emission zone is enhanced, providing conditions for continuous acceleration of the emitted electrons. It is shown that the formation of a runaway electron beam in a highly overvolted discharge is largely associated with avalanche-type processes and that the number of electrons in the avalanche reaches 50% of the total number of runaway electrons.
UR - http://www.scopus.com/inward/record.url?scp=84949257342&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84949257342&partnerID=8YFLogxK
U2 - 10.1063/1.4936826
DO - 10.1063/1.4936826
M3 - Article
VL - 22
JO - Physics of Plasmas
JF - Physics of Plasmas
SN - 1070-664X
IS - 12
M1 - 123505
ER -