Experimental study of the initial phase of atmospheric discharges

Author

Oginov, A.V. ; Shpakov, K.V. ; Oreshkin, E.V. ; Chaikovsky, S.A.

Author_Institution

P.N. Lebedev Phys. Inst., Moscow, Russia

fYear

2011

fDate

26-28 July 2011

Firstpage

6357

Lastpage

6360

Abstract

Results of experiments on breakdown of long gaps in air are presented at atmospheric pressure on ERG installation (LPI). Generation of X-ray radiation in the form of single and multiple pulses of a nanosecond scale with quanta energy of 5÷150 keV during the various moments of a time interval from the beginning of a potential difference raise and before development of the main discharge is registered. Presence a current prepulses, connected with X-ray pulses is shown. Increase of generation of a near ultraviolet λ=240÷400 nm occurs for 20 nanoseconds, and the moment of occurrence of first X-ray pulse is necessary on UV maximum. Frame shooting of an initial stage of the discharge in a visible range has shown streamer growth on formed spherical area of the leader head.

Keywords

air; discharges (electric); plasma X-ray sources; plasma diagnostics; X-ray pulses; X-ray radiation; air; atmospheric discharge; atmospheric pressure; breakdown analysis; electron volt energy 5 keV to 150 keV; nanosecond scale; potential difference analysis; pressure 1 atm; streamer growth analysis; time 20 ns; wavelength 240 nm to 400 nm; Anodes; Discharges; Electric fields; Insulators; Photomultipliers; discharge development; leader; streamer;

fLanguage

English

Publisher

ieee

Conference_Titel

Multimedia Technology (ICMT), 2011 International Conference on

Conference_Location

Hangzhou

Print_ISBN

978-1-61284-771-9

Type

conf

DOI

10.1109/ICMT.2011.6002388

Filename

6002388