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Electric field measurement in atmospheric pressure radiofrequency discharge in helium

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NAVRÁTIL Zdeněk JOSEPSON Raavo CVETANOVIĆ Nikola OBRADOVIČ Bratislav DVOŘÁK Pavel

Rok publikování 2016
Druh Vyžádané přednášky
Fakulta / Pracoviště MU

Přírodovědecká fakulta

Citace
Popis Phase resolved photon counting was applied to record low-resolved optical spectra of pre-breakdown light emitted in coplanar barrier discharge in helium. Light emissions from species as OH, N2+, He as well as thermoluminescence of Al2O3 ceramics were observed during the whole voltage period. Moreover, a light with continuum spectrum was observed shortly before the discharge breakdown. Assuming neutral bremsstrahlung as the origin of the continuum, electric field of 0.5-1 kV/cm was obtained in this discharge phase.
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