High-speed photography of long laboratory sparks

Onderzoeksoutput: Bijdrage aan congresOtherAcademic

Samenvatting

We represent first detailed high-speed photographic observations of the long laboratory spark development process in our laboratory. Pictures obtained simultaneously with voltage, currents and X-rays measurements. Earlier, we showed that near-cathode area are responsible for X-ray generation during discharge development. Signal from X-ray detectors was registered in a good coincidence with high frequency cathode current oscillations in case of positive and jumps in case of negative discharges. Also, we obtained spectra of the X-ray emission. On this base, we made several assumption concerning the energy composition and nature of the X-rays, emitted from the long laboratory sparks and atmospheric discharges at all. In this work we used a fast Picos4 camera with exposure time down to 200ps. We obtained the pictures of near-cathode area and full-length sparks up to 1.5 meter. Pictures of positive and negative corona, streamer/leader processes and other poorly investigated phenomena are represented.
Originele taal-2Engels
StatusGepubliceerd - 2012
Evenement24th NNV Symposium Plasma Physics & Radiation Technology, March 6-7, 2012, De Werelt, Lunteren, The Netherlands - De Werelt, Lunteren, Nederland
Duur: 6 mrt 20127 mrt 2012

Congres

Congres24th NNV Symposium Plasma Physics & Radiation Technology, March 6-7, 2012, De Werelt, Lunteren, The Netherlands
LandNederland
StadLunteren
Periode6/03/127/03/12
Ander24th NNV Symposium Plasma Physics & Radiation Technology, March 6-7, 2012, De Werelt, Lunteren, The Netherlands

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