Informace o publikaci

High-resolution measurements of the electric field at the streamer arrival to the cathode: A unification of the streamer-initiated gas-breakdown mechanism

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HODER Tomáš ČERNÁK Mirko PAILLOL Jean - Hugues LOFFHAGEN Detlef BRANDENBURG Ronny

Rok publikování 2012
Druh Článek v odborném periodiku
Časopis / Zdroj Physical review E
Fakulta / Pracoviště MU

Přírodovědecká fakulta

Citace
www http://pre.aps.org/abstract/PRE/v86/i5/e055401
Doi http://dx.doi.org/10.1103/PhysRevE.86.055401
Obor Fyzika plazmatu a výboje v plynech
Klíčová slova TCSPC; cathode-directed streamer; Trichel pulse
Popis A time-correlated single-photon counting technique was used to verify the formation of a cathode-directed streamer inside the narrow cathode region following the interpulse phase of regular negative corona Trichel pulses in ambient air. A purely experimental approach was used to determine the spatiotemporal development of the electric field during the Trichel pulse rise with an extremely high resolution of 10 um and tens of picoseconds. The results confirm the positive-streamer mechanism for Trichel pulse formation and provide supportive evidence for the hypothesis that the formation of a primary cathode-directed streamer occurs always in any streamer-initiated breakdown and prebreakdown phenomena associated with cathode spot formation.
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