Title :
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
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;
Conference_Titel :
Multimedia Technology (ICMT), 2011 International Conference on
Conference_Location :
Hangzhou
Print_ISBN :
978-1-61284-771-9
DOI :
10.1109/ICMT.2011.6002388
