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Application of photoionization models based on radiative transfer and the Helmholtz equations to studies of streamers in weak electric fields
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10.1063/1.2816906
/content/aip/journal/apl/91/21/10.1063/1.2816906
http://aip.metastore.ingenta.com/content/aip/journal/apl/91/21/10.1063/1.2816906
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(Color online) A cross-sectional view of distributions of (a) electron density, (b) electric field, and (c) photoionization production rate at calculated using the three-exponential Helmholtz model.

Image of FIG. 2.
FIG. 2.

Profiles of streamer characteristics along the symmetry axis of the computational domain at various moments of time calculated using different photoionization models. The results are obtained by the FCT based numerical technique (Ref. 1). (a) Electron density. (b) Electric field. Dashed line: three-group with boundary conditions defined by Eqs. (1) and (2); Solid line: three-exponential Helmholtz model. Results are shown for the moments of time from to with a timestep of .

Image of FIG. 3.
FIG. 3.

Same caption as Fig. 2 except that the results are obtained by the Scharfetter-Gummel (SG) based numerical technique (Ref. 1). Dotted line: three-group with boundary conditions provided by Zheleznyak integral solution. Dashed line: Zheleznyak model. Solid line: three-exponential Helmholtz model.

Image of FIG. 4.
FIG. 4.

Photoionization production rate at along the symmetry axis of the computational domain. (a) and the three components , , and of the three-exponential Helmholtz model. (b) calculated using the three-exponential Helmholtz and Zheleznyak models, electron impact ionization production rate , and three-body electron attachment rate .

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/content/aip/journal/apl/91/21/10.1063/1.2816906
2007-11-20
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Application of photoionization models based on radiative transfer and the Helmholtz equations to studies of streamers in weak electric fields
http://aip.metastore.ingenta.com/content/aip/journal/apl/91/21/10.1063/1.2816906
10.1063/1.2816906
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