Electric field measurements of DC-driven positive streamer coronas using the E-FISH method Academic Article uri icon

abstract

  • This paper reports on electric field measurements, using the electric field-induced second harmonic (E-FISH) method, sampling the spatial structure and temporal development of DC-driven positive streamer coronas in atmospheric-pressure air at relevant timescales to examine the self-pulsating behavior of the discharge. The discharge is triggered from a point-to-plate geometry and consists of transient coronas, which bridge the inter-electrode gap and pulsate at about 3kHz, superimposed with a persisting glow corona. The measurements presented challenge the phenomenological explanation for the pulsations based on field recovery at the anode driven by the evacuation of positive ions by electric drift effects and hint at a propagating wave-like feature from the plate-cathode to the tip-anode.

published proceedings

  • APPLIED PHYSICS LETTERS

author list (cited authors)

  • Strobel, L. R., Martell, B. C., Morozov, A., Dogariu, A., & Guerra-Garcia, C.

citation count

  • 3

complete list of authors

  • Strobel, Lee R||Martell, Benjamin C||Morozov, Anatoli||Dogariu, Arthur||Guerra-Garcia, Carmen

publication date

  • September 2022