Ion-impact secondary emission in negative corona with photoionization | Zendy

Binxian Lu | Zendy; Hongyu Sun | Zendy

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Ion-impact secondary emission in negative corona with photoionization

Author(s) -

Binxian Lu,

Hongyu Sun

Publication year - 2017

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4975146

Subject(s) - photoionization , corona discharge , atomic physics , secondary emission , corona (planetary geology) , ion , secondary electrons , electron , electron ionization , chemistry , physics , ionization , electrode , nuclear physics , organic chemistry , astrobiology , venus

A corona discharge measurement system and simulation model are presented to investigate the effects of photoionization and ion-impact secondary emission process in negative corona discharge. The simulation results obtained is shown good agreement with experimental observations. Distribution of electron density along the symmetry axis at three critical moments is shown and the role of photoionization in negative corona discharge is clearly explained. Moreover, the current pulses are also presented under different secondary emission coefficients and the effect of the secondary emission coefficient is discussed

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